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Functional LateralityDominance, CerebralNodal ProteinSitus InversusBody PatterningEthylenethioureaHeterotaxy SyndromeBeluga WhaleHabenulaPotoroidaeLeft-Right Determination FactorsDichotic Listening TestsTwins, ConjoinedZebrafishLanguageNew CaledoniaZebrafish ProteinsGrowth Differentiation Factor 1CiliaMagnetic Resonance ImagingPosterior Cerebral ArteryAmobarbitalCrowsManufactured MaterialsBrain MappingKartagener SyndromeEmbryo, NonmammalianEpilepsy, Temporal LobeGene Expression Regulation, DevelopmentalEndocardial Cushion DefectsBrainGesturesLanguage TestsImaginationPitch DiscriminationHeart Defects, CongenitalRetinal NeoplasmsCerebral CortexMagnetoencephalographyAuditory PerceptionAxonemal DyneinsRetinoblastomaAnisometropiaDwarfism, PituitaryEpilepsyAcoustic StimulationCichlidsFetal HeartReceptors, Interleukin-4, Type IPineal GlandRotationImage Processing, Computer-AssistedPsychomotor PerformanceVisceraOrganogenesisJawForelimbElectroencephalographyMesodermSomitesIn Situ HybridizationAphasiaActivin ReceptorsSchizophreniaBehavior, AnimalTinnitusReaction TimeVerbal BehaviorPan troglodytesNeuropsychological TestsHeartRetrospective StudiesFrontal LobeHallucinationsGastrulaHomeodomain ProteinsParietal LobeMorphogenesisAnalysis of VarianceHandMotor SkillsEvoked Potentials, AuditoryPhosphoenolpyruvate Carboxykinase (ATP)Task Performance and AnalysisAbnormalities, MultipleSex CharacteristicsHominidaeEmbryonic DevelopmentMagnetic Resonance AngiographyActivin Receptors, Type IAuditory CortexXenopusTime FactorsBiological EvolutionNerve Fibers, MyelinatedImmunization ScheduleSyndromeStatistics as TopicPhotic Stimulation
Functional Laterality: Behavioral manifestations of cerebral dominance in which there is preferential use and superior functioning of either the left or the right side, as in the preferred use of the right hand or right foot.Dominance, Cerebral: Dominance of one cerebral hemisphere over the other in cerebral functions.Nodal Protein: The founding member of the nodal signaling ligand family of proteins. Nodal protein was originally discovered in the region of the mouse embryo primitive streak referred to as HENSEN'S NODE. It is expressed asymmetrically on the left side in chordates and plays a critical role in the genesis of left-right asymmetry during vertebrate development.Situs Inversus: A congenital abnormality in which organs in the THORAX and the ABDOMEN are opposite to their normal positions (situs solitus) due to lateral transposition. Normally the STOMACH and SPLEEN are on the left, LIVER on the right, the three-lobed right lung is on the right, and the two-lobed left lung on the left. Situs inversus has a familial pattern and has been associated with a number of genes related to microtubule-associated proteins.Body Patterning: The processes occurring in early development that direct morphogenesis. They specify the body plan ensuring that cells will proceed to differentiate, grow, and diversify in size and shape at the correct relative positions. Included are axial patterning, segmentation, compartment specification, limb position, organ boundary patterning, blood vessel patterning, etc.Ethylenethiourea: A degradation product of ethylenebis(dithiocarbamate) fungicides. It has been found to be carcinogenic and to cause THYROID hyperplasia.Heterotaxy Syndrome: Abnormal thoracoabdominal VISCERA arrangement (visceral heterotaxy) or malformation that involves additional CONGENITAL HEART DEFECTS (e.g., heart isomerism; DEXTROCARDIA) and/or abnormal SPLEEN (e.g., asplenia and polysplenia). Irregularities with the central nervous system, the skeleton and urinary tract are often associated with the syndrome.Beluga Whale: The species Delphinapterus leucas, in the family Monodontidae, found primarily in the Arctic Ocean and adjoining seas. They are small WHALES lacking a dorsal fin.Habenula: A small protuberance at the dorsal, posterior corner of the wall of the THIRD VENTRICLE, adjacent to the dorsal THALAMUS and PINEAL BODY. It contains the habenular nuclei and is a major part of the epithalamus.Potoroidae: A family of rat kangaroos found in and around Australia. Genera include Potorous and Bettongia.Left-Right Determination Factors: Signaling ligands that act in opposition to NODAL PROTEIN. During vertebrate development they regulate the degree of left-right asymmetry by controlling the spatiotemporal influence of NODAL PROTEIN.Dichotic Listening Tests: Tests for central hearing disorders based on the competing message technique (binaural separation).Twins, ConjoinedZebrafish: An exotic species of the family CYPRINIDAE, originally from Asia, that has been introduced in North America. They are used in embryological studies and to study the effects of certain chemicals on development.Language: A verbal or nonverbal means of communicating ideas or feelings.New Caledonia: A group of islands in Melanesia constituting a French overseas territory. The group includes New Caledonia (the main island), Ile des Pins, Loyalty Island, and several other islet groups. The capital is Noumea. It was discovered by Captain Cook in 1774 and visited by various navigators, explorers, and traders from 1792 to 1840. Occupied by the French in 1853, it was set up as a penal colony 1864-94. In 1946 it was made a French overseas territory. It was named by Captain Cook with the 5th and 6th century A.D. Latin name for Scotland, Caledonia. (From Webster's New Geographical Dictionary, 1988, p830 & Room, Brewer's Dictionary of Names, 1992, p375)Zebrafish Proteins: Proteins obtained from the ZEBRAFISH. Many of the proteins in this species have been the subject of studies involving basic embryological development (EMBRYOLOGY).Growth Differentiation Factor 1: A growth differentiation factor that plays a role in the genesis of left-right asymmetry during vertebrate development. Evidence for this role is seen in MICE where loss of growth differentiation factor 1 function results in right-left isomerism of visceral organs. In HUMANS heterozygous loss of growth differentiation factor 1 function has been associated with CONGENITAL HEART DEFECTS and TRANSPOSITION OF GREAT VESSELS.Cilia: Populations of thin, motile processes found covering the surface of ciliates (CILIOPHORA) or the free surface of the cells making up ciliated EPITHELIUM. Each cilium arises from a basic granule in the superficial layer of CYTOPLASM. The movement of cilia propels ciliates through the liquid in which they live. The movement of cilia on a ciliated epithelium serves to propel a surface layer of mucus or fluid. (King & Stansfield, A Dictionary of Genetics, 4th ed)Magnetic Resonance Imaging: Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.Posterior Cerebral Artery: Artery formed by the bifurcation of the BASILAR ARTERY. Branches of the posterior cerebral artery supply portions of the OCCIPITAL LOBE; PARIETAL LOBE; inferior temporal gyrus, brainstem, and CHOROID PLEXUS.Amobarbital: A barbiturate with hypnotic and sedative properties (but not antianxiety). Adverse effects are mainly a consequence of dose-related CNS depression and the risk of dependence with continued use is high. (From Martindale, The Extra Pharmacopoeia, 30th ed, p565)Crows: Common name for the largest birds in the order PASSERIFORMES, family Corvidae. These omnivorous black birds comprise most of the species in the genus Corvus, along with ravens and jackdaws (which are often also referred to as crows).Manufactured Materials: Substances and materials manufactured for use in various technologies and industries and for domestic use.Brain Mapping: Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.Kartagener Syndrome: An autosomal recessive disorder characterized by a triad of DEXTROCARDIA; INFERTILITY; and SINUSITIS. The syndrome is caused by mutations of DYNEIN genes encoding motility proteins which are components of sperm tails, and CILIA in the respiratory and the reproductive tracts.Embryo, Nonmammalian: The developmental entity of a fertilized egg (ZYGOTE) in animal species other than MAMMALS. For chickens, use CHICK EMBRYO.Epilepsy, Temporal Lobe: A localization-related (focal) form of epilepsy characterized by recurrent seizures that arise from foci within the temporal lobe, most commonly from its mesial aspect. A wide variety of psychic phenomena may be associated, including illusions, hallucinations, dyscognitive states, and affective experiences. The majority of complex partial seizures (see EPILEPSY, COMPLEX PARTIAL) originate from the temporal lobes. Temporal lobe seizures may be classified by etiology as cryptogenic, familial, or symptomatic (i.e., related to an identified disease process or lesion). (From Adams et al., Principles of Neurology, 6th ed, p321)Gene Expression Regulation, Developmental: Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism.Endocardial Cushion Defects: A spectrum of septal defects involving the ATRIAL SEPTUM; VENTRICULAR SEPTUM; and the atrioventricular valves (TRICUSPID VALVE; BICUSPID VALVE). These defects are due to incomplete growth and fusion of the ENDOCARDIAL CUSHIONS which are important in the formation of two atrioventricular canals, site of future atrioventricular valves.Brain: The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.Gestures: Movement of a part of the body for the purpose of communication.Language Tests: Tests designed to assess language behavior and abilities. They include tests of vocabulary, comprehension, grammar and functional use of language, e.g., Development Sentence Scoring, Receptive-Expressive Emergent Language Scale, Parsons Language Sample, Utah Test of Language Development, Michigan Language Inventory and Verbal Language Development Scale, Illinois Test of Psycholinguistic Abilities, Northwestern Syntax Screening Test, Peabody Picture Vocabulary Test, Ammons Full-Range Picture Vocabulary Test, and Assessment of Children's Language Comprehension.Imagination: A new pattern of perceptual or ideational material derived from past experience.Pitch Discrimination: The ability to differentiate tones.Heart Defects, Congenital: Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.Retinal Neoplasms: Tumors or cancer of the RETINA.Cerebral Cortex: The thin layer of GRAY MATTER on the surface of the CEREBRAL HEMISPHERES that develops from the TELENCEPHALON and folds into gyri and sulchi. It reaches its highest development in humans and is responsible for intellectual faculties and higher mental functions.Magnetoencephalography: The measurement of magnetic fields over the head generated by electric currents in the brain. As in any electrical conductor, electric fields in the brain are accompanied by orthogonal magnetic fields. The measurement of these fields provides information about the localization of brain activity which is complementary to that provided by ELECTROENCEPHALOGRAPHY. Magnetoencephalography may be used alone or together with electroencephalography, for measurement of spontaneous or evoked activity, and for research or clinical purposes.Auditory Perception: The process whereby auditory stimuli are selected, organized, and interpreted by the organism.Axonemal Dyneins: Dyneins that are responsible for ciliary and flagellar beating.Retinoblastoma: A malignant tumor arising from the nuclear layer of the retina that is the most common primary tumor of the eye in children. The tumor tends to occur in early childhood or infancy and may be present at birth. The majority are sporadic, but the condition may be transmitted as an autosomal dominant trait. Histologic features include dense cellularity, small round polygonal cells, and areas of calcification and necrosis. An abnormal pupil reflex (leukokoria); NYSTAGMUS, PATHOLOGIC; STRABISMUS; and visual loss represent common clinical characteristics of this condition. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2104)Anisometropia: A condition of an inequality of refractive power of the two eyes.Dwarfism, Pituitary: A form of dwarfism caused by complete or partial GROWTH HORMONE deficiency, resulting from either the lack of GROWTH HORMONE-RELEASING FACTOR from the HYPOTHALAMUS or from the mutations in the growth hormone gene (GH1) in the PITUITARY GLAND. It is also known as Type I pituitary dwarfism. Human hypophysial dwarf is caused by a deficiency of HUMAN GROWTH HORMONE during development.Epilepsy: A disorder characterized by recurrent episodes of paroxysmal brain dysfunction due to a sudden, disorderly, and excessive neuronal discharge. Epilepsy classification systems are generally based upon: (1) clinical features of the seizure episodes (e.g., motor seizure), (2) etiology (e.g., post-traumatic), (3) anatomic site of seizure origin (e.g., frontal lobe seizure), (4) tendency to spread to other structures in the brain, and (5) temporal patterns (e.g., nocturnal epilepsy). (From Adams et al., Principles of Neurology, 6th ed, p313)Acoustic Stimulation: Use of sound to elicit a response in the nervous system.Cichlids: Common name for perch-like fish of the family Cichlidae, belonging to the suborder Labroidei, order PERCIFORMES.Fetal Heart: The heart of the fetus of any viviparous animal. It refers to the heart in the postembryonic period and is differentiated from the embryonic heart (HEART/embryology) only on the basis of time.Receptors, Interleukin-4, Type I: An interleukin-4 receptor subtype that is found predominantly on hematopoietic cells. It is a heterodimer of the INTERLEUKIN-4 RECEPTOR ALPHA SUBUNIT and the INTERLEUKIN RECEPTOR COMMON GAMMA-CHAIN.Pineal Gland: A light-sensitive neuroendocrine organ attached to the roof of the THIRD VENTRICLE of the brain. The pineal gland secretes MELATONIN, other BIOGENIC AMINES and NEUROPEPTIDES.Rotation: Motion of an object in which either one or more points on a line are fixed. It is also the motion of a particle about a fixed point. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Image Processing, Computer-Assisted: A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.Psychomotor Performance: The coordination of a sensory or ideational (cognitive) process and a motor activity.Viscera: Any of the large interior organs in any one of the three great cavities of the body, especially in the abdomen.Organogenesis: Formation of differentiated cells and complicated tissue organization to provide specialized functions.Jaw: Bony structure of the mouth that holds the teeth. It consists of the MANDIBLE and the MAXILLA.Forelimb: A front limb of a quadruped. (The Random House College Dictionary, 1980)Electroencephalography: Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain.Mesoderm: The middle germ layer of an embryo derived from three paired mesenchymal aggregates along the neural tube.Somites: Paired, segmented masses of MESENCHYME located on either side of the developing spinal cord (neural tube). Somites derive from PARAXIAL MESODERM and continue to increase in number during ORGANOGENESIS. Somites give rise to SKELETON (sclerotome); MUSCLES (myotome); and DERMIS (dermatome).In Situ Hybridization: A technique that localizes specific nucleic acid sequences within intact chromosomes, eukaryotic cells, or bacterial cells through the use of specific nucleic acid-labeled probes.Aphasia: A cognitive disorder marked by an impaired ability to comprehend or express language in its written or spoken form. This condition is caused by diseases which affect the language areas of the dominant hemisphere. Clinical features are used to classify the various subtypes of this condition. General categories include receptive, expressive, and mixed forms of aphasia.Activin Receptors: Receptors for ACTIVINS are membrane protein kinases belonging to the family of PROTEIN-SERINE-THREONINE KINASES, thus also named activin receptor-like kinases (ALK's). Activin receptors also bind TRANSFORMING GROWTH FACTOR BETA. As those transmembrane receptors of the TGF-beta superfamily (RECEPTORS, TRANSFORMING GROWTH FACTOR BETA), ALK's consist of two different but related protein kinases, Type I and Type II. Activins initiate cellular signal transduction by first binding to the type II receptors (ACTIVIN RECEPTORS, TYPE II ) which then recruit and phosphorylate the type I receptors (ACTIVIN RECEPTORS, TYPE I ) with subsequent activation of the type I kinase activity.Schizophrenia: A severe emotional disorder of psychotic depth characteristically marked by a retreat from reality with delusion formation, HALLUCINATIONS, emotional disharmony, and regressive behavior.Behavior, Animal: The observable response an animal makes to any situation.Tinnitus: A nonspecific symptom of hearing disorder characterized by the sensation of buzzing, ringing, clicking, pulsations, and other noises in the ear. Objective tinnitus refers to noises generated from within the ear or adjacent structures that can be heard by other individuals. The term subjective tinnitus is used when the sound is audible only to the affected individual. Tinnitus may occur as a manifestation of COCHLEAR DISEASES; VESTIBULOCOCHLEAR NERVE DISEASES; INTRACRANIAL HYPERTENSION; CRANIOCEREBRAL TRAUMA; and other conditions.Reaction Time: The time from the onset of a stimulus until a response is observed.Verbal Behavior: Includes both producing and responding to words, either written or spoken.Pan troglodytes: The common chimpanzee, a species of the genus Pan, family HOMINIDAE. It lives in Africa, primarily in the tropical rainforests. There are a number of recognized subspecies.Neuropsychological Tests: Tests designed to assess neurological function associated with certain behaviors. They are used in diagnosing brain dysfunction or damage and central nervous system disorders or injury.Heart: The hollow, muscular organ that maintains the circulation of the blood.Retrospective Studies: Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.Frontal Lobe: The part of the cerebral hemisphere anterior to the central sulcus, and anterior and superior to the lateral sulcus.Hallucinations: Subjectively experienced sensations in the absence of an appropriate stimulus, but which are regarded by the individual as real. They may be of organic origin or associated with MENTAL DISORDERS.Gastrula: The developmental stage that follows BLASTULA or BLASTOCYST. It is characterized by the morphogenetic cell movements including invagination, ingression, and involution. Gastrulation begins with the formation of the PRIMITIVE STREAK, and ends with the formation of three GERM LAYERS, the body plan of the mature organism.Homeodomain Proteins: Proteins encoded by homeobox genes (GENES, HOMEOBOX) that exhibit structural similarity to certain prokaryotic and eukaryotic DNA-binding proteins. Homeodomain proteins are involved in the control of gene expression during morphogenesis and development (GENE EXPRESSION REGULATION, DEVELOPMENTAL).Parietal Lobe: Upper central part of the cerebral hemisphere. It is located posterior to central sulcus, anterior to the OCCIPITAL LOBE, and superior to the TEMPORAL LOBES.Morphogenesis: The development of anatomical structures to create the form of a single- or multi-cell organism. Morphogenesis provides form changes of a part, parts, or the whole organism.Analysis of Variance: A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.Hand: The distal part of the arm beyond the wrist in humans and primates, that includes the palm, fingers, and thumb.Motor Skills: Performance of complex motor acts.Evoked Potentials, Auditory: The electric response evoked in the CEREBRAL CORTEX by ACOUSTIC STIMULATION or stimulation of the AUDITORY PATHWAYS.Phosphoenolpyruvate Carboxykinase (ATP): An enzyme of the lyase class that catalyzes the conversion of ATP and oxaloacetate to ADP, phosphoenolpyruvate, and carbon dioxide. The enzyme is found in some bacteria, yeast, and Trypanosoma, and is important for the photosynthetic assimilation of carbon dioxide in some plants. EC 4.1.1.49.Task Performance and Analysis: The detailed examination of observable activity or behavior associated with the execution or completion of a required function or unit of work.Abnormalities, MultipleSex Characteristics: Those characteristics that distinguish one SEX from the other. The primary sex characteristics are the OVARIES and TESTES and their related hormones. Secondary sex characteristics are those which are masculine or feminine but not directly related to reproduction.Hominidae: Family of the suborder HAPLORHINI (Anthropoidea) comprising bipedal primate MAMMALS. It includes modern man (HOMO SAPIENS) and the great apes: gorillas (GORILLA GORILLA), chimpanzees (PAN PANISCUS and PAN TROGLODYTES), and orangutans (PONGO PYGMAEUS).Embryonic Development: Morphological and physiological development of EMBRYOS.Magnetic Resonance Angiography: Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.Activin Receptors, Type I: One of the two types of ACTIVIN RECEPTORS or activin receptor-like kinases (ALK'S). There are several type I activin receptors. The major active ones are ALK-2 (ActR-IA) and ALK-4 (ActR-IB).Auditory Cortex: The region of the cerebral cortex that receives the auditory radiation from the MEDIAL GENICULATE BODY.Xenopus: An aquatic genus of the family, Pipidae, occurring in Africa and distinguished by having black horny claws on three inner hind toes.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Biological Evolution: The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.Nerve Fibers, Myelinated: A class of nerve fibers as defined by their structure, specifically the nerve sheath arrangement. The AXONS of the myelinated nerve fibers are completely encased in a MYELIN SHEATH. They are fibers of relatively large and varied diameters. Their NEURAL CONDUCTION rates are faster than those of the unmyelinated nerve fibers (NERVE FIBERS, UNMYELINATED). Myelinated nerve fibers are present in somatic and autonomic nerves.Immunization Schedule: Schedule giving optimum times usually for primary and/or secondary immunization.Syndrome: A characteristic symptom complex.Statistics as Topic: The science and art of collecting, summarizing, and analyzing data that are subject to random variation. The term is also applied to the data themselves and to the summarization of the data.Photic Stimulation: Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.

Central peptidergic neurons are hyperactive during collateral sprouting and inhibition of activity suppresses sprouting. (1/6942)

Little is known regarding the effect of chronic changes in neuronal activity on the extent of collateral sprouting by identified CNS neurons. We have investigated the relationship between activity and sprouting in oxytocin (OT) and vasopressin (VP) neurons of the hypothalamic magnocellular neurosecretory system (MNS). Uninjured MNS neurons undergo a robust collateral-sprouting response that restores the axon population of the neural lobe (NL) after a lesion of the contralateral MNS (). Simultaneously, lesioned rats develop chronic urinary hyperosmolality indicative of heightened neurosecretory activity. We therefore tested the hypothesis that sprouting MNS neurons are hyperactive by measuring changes in cell and nuclear diameters, OT and VP mRNA pools, and axonal cytochrome oxidase activity (COX). Each of these measures was significantly elevated during the period of most rapid axonal growth between 1 and 4 weeks after the lesion, confirming that both OT and VP neurons are hyperactive while undergoing collateral sprouting. In a second study the hypothesis that chronic inhibition of neuronal activity would interfere with the sprouting response was tested. Chronic hyponatremia (CH) was induced 3 d before the hypothalamic lesion and sustained for 4 weeks to suppress neurosecretory activity. CH abolished the lesion-induced increases in OT and VP mRNA pools and virtually eliminated measurable COX activity in MNS terminals. Counts of the total number of axon profiles in the NL revealed that CH also prevented axonal sprouting from occurring. These results are consistent with the hypothesis that increased neuronal activity is required for denervation-induced collateral sprouting to occur in the MNS.  (+info)

Retinotopic mapping of lateral geniculate nucleus in humans using functional magnetic resonance imaging. (2/6942)

Subcortical nuclei in the thalamus, which play an important role in many functions of the human brain, provide challenging targets for functional mapping with neuroimaging techniques because of their small sizes and deep locations. In this study, we explore the capability of high-resolution functional magnetic resonance imaging at 4 Tesla for mapping the retinotopic organization in the lateral geniculate nucleus (LGN). Our results show that the hemifield visual stimulation only activates LGN in the contralateral hemisphere, and the lower-field and upper-field visual stimulations activate the superior and inferior portion of LGN, respectively. These results reveal a similar retinotopic organization between the human and nonhuman primate LGN and between LGN and the primary visual cortex. We conclude that high-resolution functional magnetic resonance imaging is capable of functional mapping of suborganizations in small nuclei together with cortical activation. This will have an impact for studying the thalamocortical networks in the human brain.  (+info)

Command-related distribution of regional cerebral blood flow during attempted handgrip. (3/6942)

To localize a central nervous feed-forward mechanism involved in cardiovascular regulation during exercise, brain activation patterns were measured in eight subjects by employing positron emission tomography and oxygen-15-labeled water. Scans were performed at rest and during rhythmic handgrip before and after axillary blockade with bupivacaine. After the blockade, handgrip strength was reduced to 25% (range 0-50%) of control values, whereas handgrip-induced heart rate and blood pressure increases were unaffected (13 +/- 3 beats/min and 12 +/- 5 mmHg, respectively; means +/- SE). Before regional anesthesia, handgrip caused increased activation in the contralateral sensory motor area, the supplementary motor area, and the ipsilateral cerebellum. We found no evidence for changes in the activation pattern due to an interaction between handgrip and regional anesthesia. This was true for both the blocked and unblocked arm. It remains unclear whether the activated areas are responsible for the increase in cardiovascular variables, but neural feedback from the contracting muscles was not necessary for the activation in the mentioned areas during rhythmic handgrip.  (+info)

Language processing is strongly left lateralized in both sexes. Evidence from functional MRI. (4/6942)

Functional MRI (fMRI) was used to examine gender effects on brain activation during a language comprehension task. A large number of subjects (50 women and 50 men) was studied to maximize the statistical power to detect subtle differences between the sexes. To estimate the specificity of findings related to sex differences, parallel analyses were performed on two groups of randomly assigned subjects. Men and women showed very similar, strongly left lateralized activation patterns. Voxel-wise tests for group differences in overall activation patterns demonstrated no significant differences between women and men. In further analyses, group differences were examined by region of interest and by hemisphere. No differences were found between the sexes in lateralization of activity in any region of interest or in intrahemispheric cortical activation patterns. These data argue against substantive differences between men and women in the large-scale neural organization of language processes.  (+info)

Selective horizontal dysmetropsia following prestriate lesion. (5/6942)

We describe a patient (P.S.) who, following a right prestriate lesion, reported that objects in the left visual field appeared distorted and smaller than those on the right. Other aspects of visual processing were remarkably unaffected. We carried out a series of size comparison tests using simple or complex stimuli and requiring different types of behavioural responses. We found that P.S. significantly underestimated the size of stimuli presented in her left visual field. When comparison tasks involved stimuli placed along the vertical axis or in the right visual field, P.S. performed well. The vertical and horizontal components of size distortion were found to be differentially affected. We conclude that size processing may be dissociated from other aspects of visual processing, such as form or colour processing, and depends critically on part of the occipital, prestriate areas (Brodmann areas 18-19).  (+info)

The role of ventral medial wall motor areas in bimanual co-ordination. A combined lesion and activation study. (6/6942)

Two patients with midline tumours and disturbances of bimanual co-ordination as the presenting symptoms were examined. Both reported difficulties whenever the two hands had to act together simultaneously, whereas they had no problems with unimanual dexterity or the use of both hands sequentially. In the first patient the lesion was confined to the cingulate gyrus; in the second it also invaded the corpus callosum and the supplementary motor area. Kinematic analysis of bimanual in-phase and anti-phase movements revealed an impairment of both the temporal adjustment between the hands and the independence of movements between the two hands. A functional imaging study in six volunteers, who performed the same bimanual in-phase and anti-phase tasks, showed strong activations of midline areas including the cingulate and ventral supplementary motor area. The prominent activation of the ventral medial wall motor areas in the volunteers in conjunction with the bimanual co-ordination disorder in the two patients with lesions compromising their function is evidence for their pivotal role in bimanual co-ordination.  (+info)

Multicentre European study of thalamic stimulation in parkinsonian and essential tremor. (7/6942)

OBJECTIVES: Thalamic stimulation has been proposed to treat disabling tremor. The aims of this multicentre study were to evaluate the efficacy and the morbidity of thalamic stimulation in a large number of patients with parkinsonian or essential tremor. METHODS: One hundred and eleven patients were included in the study and 110 were implanted either unilaterally or bilaterally. Patients were evaluated with clinical scales, before and up to 12 months after surgery. RESULTS: Upper and lower limb tremor scores were reduced in both groups. Eighty five per cent of the electrodes satisfied the arbitrary criteria of two point reduction in rest tremor reduction in the parkinsonian tremor group and 89% for postural tremor reduction in the essential tremor group. In the parkinsonian tremor group, limb akinesia and limb rigidity scores were moderately but significantly reduced. Axial scores were unchanged. In the essential tremor group, head tremor was significantly reduced only at 3 months and voice tremor was non-significantly reduced. Activities of daily living were improved in both groups. Changes in medication were moderate. Adverse effects related to the surgery were mild and reversible. CONCLUSIONS: Thalamic stimulation was shown to be an effective and relatively safe treatment for disabling tremor. This procedure initially applied in a very limited number of centres has been successfully used in 13 participating centres.  (+info)

Cognitive outcome after unilateral pallidal stimulation in Parkinson's disease. (8/6942)

OBJECTIVES: Chronic high frequency electrostimulation of the globus pallidus internus mimics pallidotomy and improves clinical symptoms in Parkinson's disease. The aim of this study was to investigate the cognitive consequences of unilateral deep brain stimulation. METHODS: Twenty non-demented patients with Parkinson's disease (age range 38-70 years) were neuropsychologically assessed 2 months before and 3 months after unilateral pallidal stimulation. The cognitive assessment included measures of memory, spatial behaviour, and executive and psychomotor function. In addition to group analysis of cognitive change, a cognitive impairment index (CII) was calculated for each individual patient representing the percentage of cognitive measures that fell more than 1 SD below the mean of a corresponding normative sample. RESULTS: Neurological assessment with the Hoehn and Yahr scale and the unified Parkinson's disease rating scale disclosed a significant postoperative reduction in average clinical Parkinson's disease symptomatology (p<0.001). Repeated measures multivariate analysis of variance (using right/left side of stimulation as a between subjects factor) showed no significant postoperative change in cognitive performance for the total patient group (main effect of operation). The side of stimulation did not show a significant differential effect on cognitive performance (main effect of lateralisation). There was no significant operation by lateralisation interaction effect. Although the patients experienced significant motor symptom relief after pallidal stimulation, they remained mildly depressed after surgery. Analysis of the individual CII changes showed a postoperative cognitive decline in 30% of the patients. These patients were significantly older and took higher preoperative doses of levodopa than patients showing no change or a postoperative cognitive improvement. CONCLUSIONS: Left or right pallidal stimulation for the relief of motor symptoms in Parkinson's disease seems relatively safe, although older patients and patients needing high preoperative doses of levodopa seem to be more vulnerable for cognitive decline after deep brain stimulation.  (+info)

Functional cerebral lateralization: neurobiology and clinical aspects in childhoodFunctional cerebral lateralization: neurobiology and clinical aspects in childhood
All information about the latest scientific publications of the Clínica Universidad de Navarra. Functional cerebral lateralization: neurobiology and clinical aspects in childhood
The Evolutionary Mystery of Left-Handedness (2014) - GistTreeThe Evolutionary Mystery of Left-Handedness (2014) - GistTree
So what can the mind show about handedness? One in every of the first scientists to ponder the mystery of left-handedness became pioneering French surgeon Paul Broca, whom Wolman calls "the closest aspect the religion of Southpaw has to a prophet." In 1861, accurate two years after Darwin had came all the map in which through the rules of evolution, Broca encountered two patients who stumped him profoundly. One became an epileptic man named Leborgne however is known as "Tan," nicknamed after the one syllable he became able to uttering. Leborgne became in a location to love spoken language however couldnt inform his thoughts in speech - something that at a loss for phrases Broca very a lot, doubly so offered that one of Leborgnes first signs became a weakening of feature in the accurate side of his body, which progressed to more loss of motor rob a watch on and at closing the loss of spy and just a few of his mental colleges.. When Leborgne died on the age of 51, Broca made up our minds to ...
Abnormal lateralization of functional connectivity between language and default mode regions in autism | Molecular Autism |...Abnormal lateralization of functional connectivity between language and default mode regions in autism | Molecular Autism |...
Lateralization of brain structure and function occurs in typical development, and abnormal lateralization is present in various neuropsychiatric disorders. Autism is characterized by a lack of left lateralization in structure and function of regions involved in language, such as Broca and Wernicke areas. Using functional connectivity magnetic resonance imaging from a large publicly available sample (n = 964), we tested whether abnormal functional lateralization in autism exists preferentially in language regions or in a more diffuse pattern across networks of lateralized brain regions. The autism group exhibited significantly reduced left lateralization in a few connections involving language regions and regions from the default mode network, but results were not significant throughout left- and right-lateralized networks. There is a trend that suggests the lack of left lateralization in a connection involving Wernicke area and the posterior cingulate cortex associates with more severe autism. Abnormal
Astros notes: Matsui out again with back soreness - Houston ChronicleAstros notes: Matsui out again with back soreness - Houston Chronicle
Backe throws at practiceAstros righthander Brandon Backe, on the disabled list with a strained left intercostal muscle, threw two simulated innings of 20 pitches each Saturday in his first major test since early March. Matsui, Keppinger sit outSecond baseman Kazuo Matsui was out of the starting lineup with back stiffness for the fourth consecutive game. Backup infielder Jeff Keppinger also was out of the lineup with the back soreness that forced him out Thursday. Matsui was limited to 96 games last year because of three separate trips to the disabled list, including a stint from Aug. 13 through Sept. 2 with an irritated disc in his back. Arias heads to ExpressThe Astros are set to recall righthander Felipe Paulino so he can start Sunday, so righthander Alberto Arias was optioned back to Class AAA Round Rock three days after he had been recalled. Coming upRHP Felipe Paulino will officially be recalled from Class AAA Round Rock to start Sunday against Cincinnati righthander Edinson Volquez (1-1, 9.64
Robert StephensonRobert Stephenson
The Reds have placed right-hander Homer Bailey on the disabled list and promoted fellow right-hander and top prospect Robert Stephenson, the club announced. However, it appears that Stephenson, who rates among the games 35 best minor leaguers (per Baseball America, MLB.com and ESPNs Keith Law) will merely be making a spot start and isnt yet being viewed as a long-term option in the rotation; C. Trent Rosecrans of the Cincinnati Enquirer writes that Stephenson will likely be optioned back to Triple-A following his start, as right-hander Anthony DeSclafani will be ready to come of the DL and join the rotation on April 10. Cincinnati currently has Raisel Iglesias, Brandon Finnegan and Stephenson lined up for their season-opening series against the Phillies, with Alfredo Simon set to start the clubs fourth game of the year. DeSclafani should grab Stephensons spot in the rotations second cycle of the season, and right-hander Jon Moscot should be able to return mid-month - possibly to start on ...
Dodgers right-hander Zack Greinke thinks hes ready to return to Los Angeles | MLB.comDodgers right-hander Zack Greinke thinks he's ready to return to Los Angeles | MLB.com
LAKE ELSINORE, Calif. -- Pain free but knocked around on Friday night in his first rehab start, Dodgers right-hander Zack Greinke said hes ready to return to the Major Leagues one month after breaking his left collarbone. But Greinke also said he might not have pitched well enough to convince management hes ready after allowing eight runs (three earned) on six hits in 4 1/3 innings for Class A Rancho Cucamonga against San Diegos Lake Elsinore affiliate. He made 80 pitches and struck out four without a walk.
Being Left (Handed) Is All Right | I Spy Physiology BlogBeing Left (Handed) Is All Right | I Spy Physiology Blog
Throughout history, left-handedness has both fascinated and frightened people. Maybe it is because only about 15 percent of the population is left-handed. Or maybe it is because the reasons for left-handedness remain somewhat of a mystery.. What makes a person left- or right-handed? It seems we can find the answer in our genes, at least partially. Most researchers in the field agree that left- or right-handedness is most likely produced by genetic influences. We inherit our genes from our parents, and the genes that are turned on determine our characteristics. The specific reasons behind these genetic differences are still hotly debated, but many studies seem to point to natural selection as a probable cause.. The human brain is divided into the right and left hemispheres, with nerve fibers connecting the two. Different parts of each half of the brain control different functions of the body. Many evolutionary biologists argue that evolution produced a majority of people who controlled language ...
R: Genetic Links to Left-handednessR: Genetic Links to Left-handedness
data frame has 37 rows and 2 columns. The data are from an experiment which was designed to look for a relationship between a certain genetic characteristic and handedness. The 37 subjects were women who had a son with mental retardation due to inheriting a defective X-chromosome. For each such mother a genetic measurement of their DNA was made. Larger values of this measurement are known to be linked to the defective gene and it was hypothesized that larger values might also be linked to a progressive shift away from right-handednesss. Each woman also filled in a questionnaire regarding which hand they used for various tasks. From these questionnaires a measure of hand preference was found for each mother. The scale of this measure goes from 1, indicating someone who always favours their right hand, to 8, indicating someone who always favours their left hand. Between these two extremes are people who favour one hand for some tasks and the other for other tasks. ...
Rangers seeking difference-maker in rotation | Texas RangersRangers seeking 'difference-maker' in rotation | Texas Rangers
ARL Full Game Coverage INGTON -- The Rangers, with a week to go before the July 31 non-waiver Trade Deadline, are looking for a difference-maker for their rotation, according to industry sources. Thats why Phillies left-hander Cole Hamels and Brewers right-hander Zack Greinke had been at the top of their list. The Rangers had discussions with both teams as well as any other team that has starting pitching to trade before next Tuesday. The Rangers have also scouted Marlins right-hander Josh Johnson. The Rangers have a rotation that includes left-handers Derek Holland and Matt Harrison and right-hander Yu Darvish. They lost Colby Lewis for the season with a torn flexor tendon in his right elbow, but are expecting Roy Oswalt to return to the rotation on Sunday after skipping a start with tightness in his lower back. Scott Feldman beat the Red Sox, 9-1, on Tuesday
Minnesota Twins: Liam Hendriks returning to rotationMinnesota Twins: Liam Hendriks returning to rotation
DETROIT - Triple-A Rochester right-hander Liam Hendriks, coming off eight shutout innings Monday, will return to the Twins rotation Saturday in Cleveland. Hendriks will take the place of fellow right-hander Kyle Gibson, demoted Monday after going 2-4 with a 6.53 earned-run average in 10 big-league starts. Gibson will be slotted back into Rochesters rotation in Sundays home game against Indianapolis. Gibson will "piggyback" with veteran right-hander Virgil Vasquez, allowing the Twins to better control his workload. The highly regarded prospect has pitched 143 2/3 innings in 25 combined starts at Rochester and with the Twins. Somewhere between 150 and 160 innings remains a logical stopping point for Gibson as he approaches the two-year anniversary of his Tommy John surgery on Sept. 7. Hendriks, meanwhile, gave the Twins an excellent spot start Aug. 9 at Chicago in the second game of a doubleheader. The bubbly Australian went 6 1/3 innings against the White Sox, allowing two runs on a pair of ...
Integral Options Cafe: No Such Thing as Left- or Right-Brained People - An Evaluation of the Left-Brain vs. Right-Brain...Integral Options Cafe: 'No Such Thing' as Left- or Right-Brained People - An Evaluation of the Left-Brain vs. Right-Brain...
Lateralized brain regions subserve functions such as language and visuospatial processing. It has been conjectured that individuals may be left-brain dominant or right-brain dominant based on personality and cognitive style, but neuroimaging data has not provided clear evidence whether such phenotypic differences in the strength of left-dominant or right-dominant networks exist. We evaluated whether strongly lateralized connections covaried within the same individuals. Data were analyzed from publicly available resting state scans for 1011 individuals between the ages of 7 and 29. For each subject, functional lateralization was measured for each pair of 7266 regions covering the gray matter at 5-mm resolution as a difference in correlation before and after inverting images across the midsagittal plane. The difference in gray matter density between homotopic coordinates was used as a regressor to reduce the effect of structural asymmetries on functional lateralization. Nine left- and 11 ...
Integral Options Cafe: 08/18/2013 - 08/25/2013Integral Options Cafe: 08/18/2013 - 08/25/2013
Lateralized brain regions subserve functions such as language and visuospatial processing. It has been conjectured that individuals may be left-brain dominant or right-brain dominant based on personality and cognitive style, but neuroimaging data has not provided clear evidence whether such phenotypic differences in the strength of left-dominant or right-dominant networks exist. We evaluated whether strongly lateralized connections covaried within the same individuals. Data were analyzed from publicly available resting state scans for 1011 individuals between the ages of 7 and 29. For each subject, functional lateralization was measured for each pair of 7266 regions covering the gray matter at 5-mm resolution as a difference in correlation before and after inverting images across the midsagittal plane. The difference in gray matter density between homotopic coordinates was used as a regressor to reduce the effect of structural asymmetries on functional lateralization. Nine left- and 11 ...
Handedness and season of birth: a gender-invariant relation. - Oxford NeuroscienceHandedness and season of birth: a gender-invariant relation. - Oxford Neuroscience
In an earlier study, Dellatolas, Curt and Lellouch (1991) concluded that handedness is not related to season of birth. However, post-hoc exploration of their and other sets of data has shown that there is an apparent tendency for left-handedness to be more prevalent in the period March-July than in the period August-February. The present work tested this seasonal hypothesis prospectively among university students. It was found that the proportion of all left-handed participants who were born in the period March-July was indeed significantly greater than the proportion of all right-handed participants who were born in the same period. Furthermore, the pattern of seasonal influence upon handedness did not vary significantly between females and males. The relation between handedness and season of birth may be linked to seasonal variation in other factors such as the incidence of infectious agents.
Mapping hemispheric asymmetries of the macaque cerebral cortex during early brain development<...Mapping hemispheric asymmetries of the macaque cerebral cortex during early brain development<...
TY - JOUR. T1 - Mapping hemispheric asymmetries of the macaque cerebral cortex during early brain development. AU - Xia, Jing. AU - Wang, Fan. AU - Wu, Zhengwang. AU - Wang, Li. AU - Zhang, Caiming. AU - Shen, Dinggang. AU - Li, Gang. PY - 2020/1/1. Y1 - 2020/1/1. N2 - Studying cortical hemispheric asymmetries during the dynamic early postnatal stages in macaque monkeys (with close phylogenetic relationship to humans) would increase our limited understanding on the possible origins, developmental trajectories, and evolutional mechanisms of brain asymmetries in nonhuman primates, but remains a blind spot to the community. Via cortical surface-based morphometry, we comprehensively analyze hemispheric structural asymmetries in 134 longitudinal MRI scans from birth to 20 months of age from 32 healthy macaque monkeys. We reveal that most clusters of hemispheric asymmetries of cortical properties, such as surface area, cortical thickness, sulcal depth, and vertex positions, expand in the first 4 ...
New Findings Help Explain the Dynamics Between The Dominant and Non-Dominant ArmNew Findings Help Explain the Dynamics Between The Dominant and Non-Dominant Arm
The transfer of a skill learned in one hand to the other hand has been used as evidence for the role of the brains hemispheres in controlling that skill. The movement of knowledge from the dominant to the nondominant arm (D ->ND) has been interpreted as confirmation of the brains ability to encode an experience in the dominant hemisphere with the dominant hand and to influence the performance of the nondominant hand. Many researchers believe that this process is accomplished either through connections across both hemispheres or through the same side of the brain. Other scientists believe that transfer in the opposite direction reflects a dominance of the right hemisphere (in right-handers) for some aspects of motor control, so both directions of transfer can be explained with a single model ...
Hemispheric division of function is the result of independent probabilistic biases. - Oxford NeuroscienceHemispheric division of function is the result of independent probabilistic biases. - Oxford Neuroscience
Verbal and visuospatial abilities are typically subserved by different cerebral hemispheres: the left hemisphere for the former and the right hemisphere for the latter. However little is known of the origin of this division of function. Causal theories propose that functional asymmetry is an obligatory pattern of organisation, while statistical theories maintain this is a reflection of independent, probalistic biases. The current study investigated lateralisation for language production and spatial memory using functional Transcranial Doppler in 75 healthy adults (45 right handed, 27 left-handed, 3 ambidextrous). The majority of participants had language abilities lateralised to the left-hemisphere and spatial memory to the right hemisphere, while around one-quarter of participants had these functions lateralised to the same hemisphere. No participants showed the reversal of typical organisation. The findings are consistent with a statistical view of functional asymmetry, in which hemispheric biases for
Shedding Light on Southpaws - Northwestern NowShedding Light on Southpaws - Northwestern Now
EVANSTON, Ill. --- Lefties have always been a bit of a puzzle. Representing only 10 percent of the general human population, left-handers have been viewed with suspicion and persecuted across history. The word "sinister" even derives from "left or left-hand.". Two Northwestern University researchers now report that a high degree of cooperation, not something odd or sinister, plays a key role in the rarity of left-handedness. They developed a mathematical model that shows the low percentage of lefties is a result of the balance between cooperation and competition in human evolution.. Professor Daniel M. Abrams and his graduate student Mark J. Panaggio -- both right-handers -- are the first to use real-world data (from competitive sports) to test and confirm the hypothesis that social behavior is related to population-level handedness.. The results are published today (April 25) in The Journal of the Royal Society Interface.. "The more social the animal -- where cooperation is highly valued -- the ...
Jenny Diski · Diary: On Knitting · LRB 21 November 2013Jenny Diski · Diary: On Knitting · LRB 21 November 2013
More worrying, because mysterious, in my handiwork life was the way nothing I cut or measured, no matter how carefully, ever came out the right size. In woodwork the length of the strut for the bookshelf was always too short, and so had to be discarded, or too long, so Id measure again and cut a bit off, still too long, and so on until finally it was too short and had to be thrown away. The front and back of a blouse never matched. Other people got it right first time and there was no explaining it. Left-handedness might have been part of the problem. I was always using the wrong tools. Saws were hopeless, as bread knives and scissors still are; bread, paper and timber end up cut on a slant, no matter how hard I try. Pen nibs were cut for right-handers, indeed left-to-right writing is designed for them, so that my wrist was always smudging the already blotty letters. Sewing machines had the knobs and bobbin things on the back if I used them. But no one mentioned that and so I couldnt ...
Acute Alzheimers-like memory loss and Alzheimers-like memory loss and Bilateral brain hemisphere damage and Epilepsy - Symptom...Acute Alzheimers-like memory loss and Alzheimers-like memory loss and Bilateral brain hemisphere damage and Epilepsy - Symptom...
List of 131 causes for Acute Alzheimers-like memory loss and Alzheimers-like memory loss and Bilateral brain hemisphere damage and Epilepsy, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more.
Frontiers | Hand preference across the lifespan: effects of end-goal, task nature, and object location | PsychologyFrontiers | Hand preference across the lifespan: effects of end-goal, task nature, and object location | Psychology
In the present study we investigate age-related changes in hand preference for grasping and the influence of task demands on such preference. Children (2-11), young-adults (17-28) and older-adults (57-90) were examined in a grasp-to-eat and a grasp-to-construct task. The end-goal of these tasks was different (eat versus construct) as was the nature of the task (unimanual versus bimanual). In both tasks, ipsilateral and contralateral grasps were analyzed. Results showed a right-hand preference that did not change with age. Across the three age groups, a more robust right-hand preference was observed for the unimanual, grasp-to-eat task. To disentangle if the nature (unimanual) or the end-goal (grasp-to-eat) was the driver of the robust right-hand preference, a follow up experiment was conducted. Young-adult participants completed a unimanual grasp-to-place task. This was contrasted with the unimanual grasp-to-eat task and the bimanual grasp-to-construct task. Rates of hand preference for the grasp-to-eat
Toronto swaps Santos for closer by committee | Toronto Blue JaysToronto swaps Santos for closer by committee | Toronto Blue Jays
PITTSBURGH -- Right-hander Brandon Morrow will miss at least two months because of a torn tendon sheath in his right index finger.. Morrow sustained the injury during the fifth inning of Friday nights loss to the Pirates. He finished the inning but did not come back out for the sixth, and he then flew to Florida on Saturday morning for an MRI exam.. The test revealed a tear, and as a result Morrow has been placed on the 60-day disabled list. The hope is that Morrow will be able to avoid surgery and return in July, but there is also a chance he will not pitch again this season. The Blue Jays recalled right-hander Chad Jenkins to take Morrows spot on the 25-man roster.. "If he heals up, he should be back in July; if its not healing up, then theyll have to do surgery and hell be done for the year probably," Blue Jays manager John Gibbons said. "Theyre going to wait to see [about] rehab, see if it heals on its own. But if it looks like its not going to [heal], they have the option to have ...
StarTribune - Print PageStarTribune - Print Page
BALTIMORE -- The Twins bullpen is one short on Saturday, after Samuel Deduno was claimed off waivers by the Houston Astros.. The 31-year-old righthander, who twice failed to hold a spot in Minnesotas starting rotation, finishes his Twins career with a 16-18 record and 4.26 ERA. He started 41 games, pitched in long relief another 22 times, and tantalized fans with his sometimes-dominating fastball.. But his lack of control was a persistent problem, and ultimately, the Twins decided to let him go for nothing but the $25,000 waiver fee. The Astros will pay the final month of his $520,000 contract, and the Twins free up a roster spot they can use for a younger player.. He was sad to leave Minnesota, said manager Ron Gardenhire, who broke the news to the veteran righthander in the lobby of the teams hotel here. He definitely liked it here. But I told him, its always a good thing when somebody wants you.. To replace Deduno, the Twins added lefthander Aaron Thompson to the 40-man roster and ...
Rockies wont mortgage future, standing pat as trade deadline passes - The Denver PostRockies won't "mortgage future," standing pat as trade deadline passes - The Denver Post
I am happy here. This is where I want to stay," De La Rosa said.. There was little movement in the division. Arizona acquired left-handed reliever Joe Thatcher from San Diego, parting with starter Ian Kennedy. The Dodgers signed free-agent reliever Brian Wilson on Tuesday. The biggest trades involved the Red Sox landing White Sox right-hander Jake Peavy and the Orioles acquiring right-hander Bud Norris from the Astros.. Its still possible the Rockies could make some roster wrinkles. Several teams were interested in closer Rafael Betancourt before his appendectomy. However, a player must pass through waivers this month to be traded. And other teams can block that move, leaving the player typically pulled back rather than a deal getting worked out.. Bettis arrives. Rookie Chad Bettis doesnt scare easily. Good thing. Hes up next, making his major-league debut Thursday. The Rockies starters have allowed 30 hits and 20 earned runs in the first three games of this series.. Colorado has been ...
Righthander Phil Hughes next up to join Twins 2014 rotation - StarTribune.comRighthander Phil Hughes next up to join Twins' 2014 rotation - StarTribune.com
Ex-Yankee Phil Hughes is expected to receive $24 million for three years from the Twins, who are also making progress to bring back A.J. Pierzynski.
Bartolo Colon designated for assignment by BravesBartolo Colon designated for assignment by Braves
SAN DIEGO (AP) - Right-hander Bartolo Colon was designated for assignment by the Atlanta Braves on Thursday, one day after the 44-year-old right-handers record dropped to 2-8.
Hemispheric differences for visual P3 amplitude in patients with schizophreniaHemispheric differences for visual P3 amplitude in patients with schizophrenia
... , Pegah Vafaii, Shahrzad Mazhari, Ali Mohammad Pourrahimi, Nouzar Nakhaee
A model for population-level handedness | Journal of The Royal Society InterfaceA model for population-level handedness | Journal of The Royal Society Interface
One challenge to modelling population-level handedness is a lack of data for empirical validation. To quote Ghirlanda et al. … we need data from populations that differ in the balance between antagonistic and synergistic interactions but are otherwise as similar as possible [11]. Ideally, we would compare predicted equilibria of equation (2.2) to data from animal populations exhibiting varying degrees of cooperation. Unfortunately, for most species, quantifying the degree of cooperation is difficult, and the available data on the degree and direction of population-level lateralization vary from experiment to experiment depending on the task considered. This lack of consistent, conclusive data on handedness in the natural world leads us to examine the proxy situation of athletics (as done in Raymond et al. [1]), where data on handedness and cooperation are more easily accessible.. To explain the observed fraction of left-handed athletes, it is important to model the selection process because ...
Download Cerebral Asymmetries In Sensory And Perceptual Processing 1997Download Cerebral Asymmetries In Sensory And Perceptual Processing 1997
00New Perspectives on Language and Sexual Identity by Morrish, E. HcoverNew Perspectives on Language and Sexual Identity causes a download Cerebral Asymmetries in Sensory to the including student of smoothie and government. not your download Cerebral Asymmetries in Sensory and Perceptual Processing 1997 would investigate remained built to he. whole Dynamic Interplay Between Context and the Language Learner by King, JimBy King, Jim.
Evolution of brain lateralization: A shared hominid pattern of endocranial asymmetry is much more variable in humans than in...Evolution of brain lateralization: A shared hominid pattern of endocranial asymmetry is much more variable in humans than in...
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Review: Left out of the world | New ScientistReview: Left out of the world | New Scientist
The Left-Hander Syndrome: The Causes and Consequences of Left-handedness by Stanley Coren, John Murray, pp 308, Pounds sterling 16.95 Perhaps the least noticed and most disadvantaged minority group is the left-handed. Their bad press goes back to ancient times. After all, (God) set the sheep on his right hand, and the goats on the left …
Highly Creative People Have Well-Connected Brain Hemispheres | Psychology TodayHighly Creative People Have Well-Connected Brain Hemispheres | Psychology Today
People who are highly creative have better connectivity between the left and right brain hemispheres, according to a new study by a team of international researchers.
Phenotypic variability in mnd: clues to site of origin and patterns of disease spread | Journal of Neurology, Neurosurgery &...Phenotypic variability in mnd: clues to site of origin and patterns of disease spread | Journal of Neurology, Neurosurgery &...
Results Techniques were first established in controls. Lower limb TT-TMS normal values (n=35) showed no statistically significant difference from upper limb (11.5+1.2 vs 11.3+1.1) and no significant interhemispheric differences (p=0.8). Novel testing of all 4-limbs in patients revealed differences in the pattern and spread of UMN and LMN vulnerability. Peripheral DTI metrics identified early axonal degeneration in the pre-symptomatic upper limb, correlating with clinical and neurophysiological markers of disease progression. Cortical hyperexcitability was associated with the clinically symptomatic limb as well site of onset in all phenotypes. In upper limb onset patients, clinical asymmetry correlated with synchronous asymmetry in LMN and UMN involvement, with significant interhemispheric differences in cortical hyperexcitability (p=0.05). ...
Methodological considerations in assessment of language lateralisation with fMRI: a systematic review [PeerJ]Methodological considerations in assessment of language lateralisation with fMRI: a systematic review [PeerJ]
The involvement of the right and left hemispheres in mediating language functions has been measured in a variety of ways over the centuries since the relative dominance of the left hemisphere was first known. Functional magnetic resonance imaging (fMRI) presents a useful non-invasive method of assessing lateralisation that is being increasingly used in clinical practice and research. However, the methods used in the fMRI laterality literature currently are highly variable, making systematic comparisons across studies difficult. Here we consider the different methods of quantifying and classifying laterality that have been used in fMRI studies since 2000, with the aim of determining which give the most robust and reliable measurement. Recommendations are made with a view to informing future research to increase standardisation in fMRI laterality protocols. In particular, the findings reinforce the importance of threshold-independent methods for calculating laterality indices, and the benefits of
I Do Still KnitI Do Still Knit
Ive been trying to make it work. Its been trying to avoid working for me. Were at a standoff. However, here are my insights about it, which you may translate easily into left-handedness: what youre actually doing is wrapping the yarn around and around your hand. The whole deal with the finger is just to make sure that you can take the wrapped yarn OFF again - cause if youd just wrap yarn around your hand, it would, uh, be nice a nice and tight - but not plyable-from - hand warmer. So, the trick youre trying to do is to insert a something (your middle finger) into the tight ball being wrapped, and then remove it, so that the tight ball has a large enough center hole to fit comfortably and nicely over your wrist, without pain. Ive been experimenting with toilet rolls instead of hands (for making the center-pull ball - which seems to entail mostly just the keeping track of where the first end, while simultaneously rolling the ball with the business end; I do that by sticking the first end ...
Foremost UK Gay Activist Admits there is No Gay Gene | News | LifeSiteForemost UK Gay Activist Admits there is No Gay Gene | News | LifeSite
Peter Tatchell, an Australian-born British homosexual activist who founded the "direct action" group OutRage! that specialises in media stunts such as disrupting Christian religious services, wrote on Spiked Online that he agrees with the scientific consensus that there is no such thing as a "gay gene." Contrary to the findings of some researchers who have tried to posit a purely genetic origin for same-sex attractions, Tatchell wrote, "Genes and hormones may predispose a person to one sexuality rather than another. But thats all. Predisposition and determination are two different things.". Homosexual activists have adopted the "gay gene" theory to bolster their assertion that any objection on moral grounds to homosexual activity is akin to objecting to left-handedness or skin colour. It has supported the accusation that Christians and others who object to the homosexual movement are racists and bigots. Tatchell even went as far as to acknowledge the existence of some who have changed their ...
The Brain | Anatomy, Functions & Medical Conditions | Healthy Living BenefitsThe Brain | Anatomy, Functions & Medical Conditions | Healthy Living Benefits
The brain is usually associated with the thinking process, memory, cognition, logic or concentration. However, the real mechanism of action of this highly-evolved structure might leave you amazed. Let us take the lateralization of brain function. As discussed before, there are two distinct cerebral halves separated by a median fissure.. Studies show that each human being evolves in his own manner and has his own unique lateralization. The left hemisphere is associated with action and strongly related to emotional impulses that can lead to risky behaviors or unwise decisions. The manner of speech and muscular movement seem to be more dominant in this case. The right hemisphere on the other hand is connected to logical thinking and visuospatial attention. According to a study published in 2013, left hemisphere regions tend to interact with the same hemisphere, while right-hemisphere constituents are likely to do so with both halves. Still, their functions remain largely related. For example, if a ...
Hardy Weinberg ProblemHardy Weinberg Problem
Assume that left-handedness is a recessive trait controlled by one pair of dominant-recessive alleles. If 625 of 2,500 individuals in a sample of a population is left-handed, and if the population is in Hardy-Weinberg.
Beyond Advaita: Ardhanareeswar - The Bilateral Human BrainBeyond Advaita: Ardhanareeswar - The Bilateral Human Brain
Split-brain research has been conducted for decades, and scientists have long ago shown that language processing is largely located in the left side of the brain. When words appear only in the left visual field -- an area processed by the right side of the brain -- the right brain must transfer that information to the left brain, in order to interpret it. The new study at UCSB shows that healthy test subjects respond less accurately when information is shown only to the right brain. While hemispheric specialization is considered accurate, the new study sheds light on the highly complex interplay -- with neurons firing back and forth between distinct areas in each half of the brain.This study shows that the strength of communication across the brain changes dynamically, when information is exchanged between the right and left hemispheres via the corpus callosum, which connects both sides of the brain." ...
EUROSPEECH99 Abstract: Alter et al.EUROSPEECH'99 Abstract: Alter et al.
While the left hemispheric role in speech production has been extensively studied the role of the right hemisphere is less explored. Therefore, this paper addressed the question to what extend the right hemisphere is involved in prosodic production in an intonational language such as German. In particular, we explored the speech production of three patients with right hemisphere damage and compared these data to that of matched controls. We used a question-answer test of 48 German sentences with different verb-argument structures and varying focus positions. Healthy subjects correctly differentiated between the syntactic conditions and between the wide and narrow focused sentences by correlating prosodic parameters with cues for Intonational Phrasing as well as for accent distribution and accent types. In comparison, patients had difficulties in realizing prominence/accent distribution. Additionally, they seem to have a decreasing capacity for durational control as indicated by missing prefinal ...
Language Production Tasks Can Shift From Left To Right Brain Hemispheres After Damage - Columbia University Medical CenterLanguage Production Tasks Can Shift From Left To Right Brain Hemispheres After Damage - Columbia University Medical Center
New York, NY - September 14, 2000 - Columbia-Presbyterian researchers report that rather than being completely hard wired, structures on one side of the brain can take over certain language functions normally achieved by a damaged region on the opposite side. The study, published in the September 2000 issue of the journal Neuropsychologia, may provide insights into the brains compensatory responses to injury.. The brain is not a homogeneous structure-various brain functions are each performed by distinct, areas, so damage to a brain region can produce a specific and lasting functional difficulty in perception, thinking, or movement. Columbia-Presbyterian researchers report, however, that in the brains of three patients with chronic arteriovenous malformations (AVMs) in the left frontal lobe, brain functions involved in speech production were successfully relocated.. AVMs are chronic conditions thought to begin developing in utero and may begin causing brain problems, as evidenced by ...
Neuroimagen.com: marzo 2011Neuroimagen.com: marzo 2011
Results TMS data revealed 12/13 subjects had asymmetric motor representation (lateralised dominance) for the pharynx (6 left, 6 right) with significantly larger responses observed in the lateralised projection (p , 0.001). FMRI data (figure 1) also revealed asymmetric activations in both sensorimotor cortices in each subject for the different tasks which were used as seed regions for tractography. Largest activations were observed in primary motor cortices (Brodmann Area (BA) 4) after water swallowing, predominantly right lateralised. By contrast, tongue elevation and saliva swallowing produced a greater number of left lateralised brain areas, particularly pre- and supplementary-motor cortex (BA 6) as well as areas involved with language and speech processing (BA 22,40,44). Tractography revealed larger tract volumes in the hemispheric dominant projection predicted by TMS compared to the non-dominant projection for water but not for saliva swallowing or tongue elevations (p , 0.001 ...
Neuroimagen.com: marzo 2011Neuroimagen.com: marzo 2011
Results TMS data revealed 12/13 subjects had asymmetric motor representation (lateralised dominance) for the pharynx (6 left, 6 right) with significantly larger responses observed in the lateralised projection (p , 0.001). FMRI data (figure 1) also revealed asymmetric activations in both sensorimotor cortices in each subject for the different tasks which were used as seed regions for tractography. Largest activations were observed in primary motor cortices (Brodmann Area (BA) 4) after water swallowing, predominantly right lateralised. By contrast, tongue elevation and saliva swallowing produced a greater number of left lateralised brain areas, particularly pre- and supplementary-motor cortex (BA 6) as well as areas involved with language and speech processing (BA 22,40,44). Tractography revealed larger tract volumes in the hemispheric dominant projection predicted by TMS compared to the non-dominant projection for water but not for saliva swallowing or tongue elevations (p , 0.001 ...
Lateralized Brain Functions | SpringerLinkLateralized Brain Functions | SpringerLink
This volume explores both simple and sophisticated techniques used in the study of different types of lateralization of brain and behavior. Research in this field increases our understanding of variou
Reversed Hemispheric Asymmetry of Auditory N100m in Schizophrenics | SpringerLinkReversed Hemispheric Asymmetry of Auditory N100m in Schizophrenics | SpringerLink
Human brain hemispheres are asymmetric. Individual anatomical differences involve widespread cortical and subcortical areas and are more prominent among males [1,2]. The interhemispheric asymmetry is...
The Decline and Fall of Hemispheric Specialization: 1st Edition (Paperback) - RoutledgeThe Decline and Fall of Hemispheric Specialization: 1st Edition (Paperback) - Routledge
Providing a personal overview of hemispheric differences in human cognitive activity, Professor Efron is selective in his presentation of significant issues. To ensure a balanced overview, references are made to many books, review articles, and research…
Right-side Stroke | Doctors HospitalRight-side Stroke | Doctors Hospital
Learn more about Right-side Stroke at Doctors Hospital of Augusta DefinitionCausesRisk FactorsSymptomsDiagnosisTreatmentPreventionrevision ...
Dividing the hemispheresDividing the hemispheres
Last night I decided to conduct an experiment using myself as a test subject (although, not quite in the Timothy Leary sort of way). I was curious what effects I would observe when reading with only one eye. Each eye sends information to the opposing brain hemisphere - information from the left eye goes to the right side of the brain, information from the right eye goes to the left side of the brain. Each hemisphere specializes in different functions and the way it interprets the world. The two hemispheres are joined by a bundle of nerves called the corpus callosum ...
dopOSCCI: a functional transcranial Doppler ultrasonography summary suite for the assessment of cerebral lateralization of...dopOSCCI: a functional transcranial Doppler ultrasonography summary suite for the assessment of cerebral lateralization of...
We present a description of a new software package, dopOSCCI, which summarises data from experimental studies where functional transcranial Doppler ultrasonography (fTCD) is used to compare hemispheric rates of blood flow in order to assess lateralization of a cognitive process. The software provides a graphical user interface to summarise analogue and digital data collected using Multi-Dop Doppler Ultrasound devices (DWL Multidop T2: manufacturer, DWL Elektronische Systeme, Singen, Germany). The unique aspects of dopOSCCI allow multi-file processing, multi-event marker processing, behavioural and multi-session summaries, image file data visualization, and tab-delimited output files which includes split-half, single-trial summaries and data quality variables. The Matlab based software is available under the GNU GPL license and can be accessed online at https://databank.ora.ox.ac.uk/general/datasets/dopOSCCI, the Oxford University DataBank.
Consistency of hand preference across low-level and high-level tasks in Capuchin monkeys (Cebus apella).Consistency of hand preference across low-level and high-level tasks in Capuchin monkeys (Cebus apella).
American Journal of Primatology 70:254-260 (2008) RESEARCH ARTICLE Consistency of Hand Preference Across Low-level and High-level Tasks in Capuchin Monkeys (Cebus apella) ALAYNA L. LILAK AND KIMBERLEY A. PHILLIPS Department of Psychology, Hiram College, Hiram, Ohio Numerous studies investigating behavioral lateralization in capuchins have been published. Although some research groups have reported a population-level hand preference, other researchers have argued that capuchins do not show hand preference at the population level. As task complexity influences the expression of handedness in other primate species, the purpose of this study was to collect hand preference data across a variety of high- and low-level tasks to evaluate how task complexity influences the expression of hand preference in capuchins. We tested eleven captive brown capuchin monkeys (Cebus apella) to determine if they show consistent hand preferences across multiple high- and lowlevel tasks. Capuchins were expected to ...
Schizophrenia Daily News Blog: Schizophrenia and Left HandednessSchizophrenia Daily News Blog: Schizophrenia and Left Handedness
An new review related to schizophrenia and left handedness covers the changes to the structure of the brain, including which part of the brain deals with which functions have often been thought to be important in schizophrenia. Several studies have noted a higher rate of left-handedness in schizophrenic people although some scientists think this is due to ambidextrousness rather than genuine left-handedness. A recent review of 40 studies into handedness and schizophrenia found that schizophrenic people were more likely to be left-handed although there was often a lack of consistency about the way in which handedness was defined.. Dragovic, M., Hammond, G. - Handedness in schizophrenia : a quantitative review of evidence Acta Psychiatrica Scandinavica June 2005, 111 (6), 410-419. Blog Source: Mental Health Update. ...
Mechanisms of hemispheric specialization: insights from analyses of connectivity - Zurich Open Repository and ArchiveMechanisms of hemispheric specialization: insights from analyses of connectivity - Zurich Open Repository and Archive
Traditionally, anatomical and physiological descriptions of hemispheric specialization have focused on hemispheric asymmetries of local brain structure or local functional properties, respectively. This article reviews the current state of an alternative approach that aims at unraveling the causes and functional principles of hemispheric specialization in terms of asymmetries in connectivity. Starting with an overview of the historical origins of the concept of lateralization, we briefly review recent evidence from anatomical and developmental studies that asymmetries in structural connectivity may be a critical factor shaping hemispheric specialization. These differences in anatomical connectivity, which are found both at the intra- and inter-regional level, are likely to form the structural substrate of different functional principles of information processing in the two hemispheres. The main goal of this article is to describe how these functional principles can be characterized using ...
Frontiers | Brain lateralization and neural plasticity for musical and cognitive abilities in an epileptic musician | Frontiers...Frontiers | Brain lateralization and neural plasticity for musical and cognitive abilities in an epileptic musician | Frontiers...
The use of intracarotid propofol procedure (IPP) when assessing musical lateralization has not been reported in literature up to now. This procedure (similar to Wada Test) has provided the opportunity to investigate not only lateralization of language and memory functions on epileptic patients but also offers a functional mapping approach with superior spatial and temporal resolution to analyze the lateralization of musical abilities. Findings in literature suggest that musical training modifies functional and structural brain organization. We studied hemispheric lateralization in a professional musician, a 33 years old woman with refractory left medial temporal lobe epilepsy. A longitudinal neuropsychological study was performed over a period of 21 months. Before epilepsy surgery, musical abilities, language and memory were tested during IPP by means of a novel and exhaustive neuropsychological battery focusing on the processing of music. We used a selection of stimuli to analyze listening, score
Detection threshold for percutaneous electrical stimuli: asymmetry with respect to handedness. | Journal of Neurology,...Detection threshold for percutaneous electrical stimuli: asymmetry with respect to handedness. | Journal of Neurology,...
Sensory strength-duration curves were obtained using percutaneous true square-wave pulses ranging from 0.1 to 20.0 ms produced by an isolated constant current stimulator. In 119 healthy volunteers sensory thresholds were measured bilaterally by stimulating the distal phalange of the little finger. In order to examine the relationship of sensory threshold and handedness the latter was assessed by means of the Edinburgh Inventory. An asymmetry of sensory threshold was found for all the subjects and this was more pronounced with shorter stimuli. Of right-handers tested 73.5% had a lower threshold on the left side while 70.8% of left-handers had a lower threshold on the right side. Although threshold asymmetry is associated with handedness this is not necessarily due to cerebral lateralization.. ...
Prevent Disease.com - Twin Study Suggests Right- Handedness Is Gene-BasedPrevent Disease.com - Twin Study Suggests Right- Handedness Is Gene-Based
California researchers examined 72 pairs of identical twins, who share all of the same genes, and 67 pairs of fraternal twins, who share many but not all genes. All were World War II veterans enrolled in a long-term government brain study, and their average age was 72. All patients underwent MRI scans to compare the sizes of the left and right sides of their brains. The scans indicated that righties had less symmetrical brains than the lefties, as has been shown in previous research, Dr. Daniel Geschwind and colleagues report in the March 5th issue of the Proceedings of the National Academy of Sciences. And when the researchers compared individual pairs of identical and fraternal twins, they found that the brains of the right-handed identical siblings were the most similar structurally, suggesting a strong genetic underpinning to right-handedness that does not seem to be present for left-handedness. "The brain structure differences in right-handers seem to have a significant genetic component," ...
garrett jones - South Florida Sun-Sentinelgarrett jones - South Florida Sun-Sentinel
Marlins acquire Prado from Yankees to replace SF-bound McGehee. The Miami Marlins on Tuesday acquired Martin Prado, right-hander David Phelps and cash from the New York Yankees in exchange for right-hander Nathan Eovaldi, first baseman Garrett Jones and right-hander Domingo German.. ...
Left Brain Right Brain 2 DS Retail Box Art PageLeft Brain Right Brain 2 DS Retail Box Art Page
The Left Brain Right Brain game series is designed to equally train a players weak and dominant hands via logic-based mini-games that require players to rotate the DS in book style play. In Left Brain Right Brain 2, players use the Touch Screen in 20 new games based on speed, accuracy, association, recognition, memory and strategy. Games like Balloon Attack, Block Buster, Cosmic Seesaw and Space Escape, among others, strengthen the left and right hemispheres of the brain by making players switch hands throughout play. Afterwards, players can monitor personal progress and assess improvement by reviewing development percentages for each hand. Gamers can also tailor their favorite mental-training routine in the new Exercises mode, while testing good and weak hands via three random games in Ambidexterity Check. Finally, players can compete with a friend in both single and multi-card multiplayer mode to prove who has the mental skills to be truly ambidextrous ...
Left brain dominant and right brain dominant Aspies. | Wrong Planet Autism Community ForumLeft brain dominant and right brain dominant Aspies. | Wrong Planet Autism Community Forum
Almost all right-handers are left hemisphere dominant (99-ish percent) but with left-handers its about 50/50. Im somewhat ambidextrous, though (prefer right hand but can use left hand even to write), and I tend to be highly logical and very language oriented, spatial orientation skills suck (a right hemisphere skill) but I can sing and play piano as well as draw fairly well. Ive also done some pretty good sculptures...Ive had some abbreviated neuropsychological testing about 10-15 years ago and they thought I had "mixed dominance ...
Kelley cleared for rehab stint after sim game | New York YankeesKelley cleared for rehab stint after sim game | New York Yankees
NEW YORK -- Wade LeBlanc said that when he learned he had been claimed off waivers from the Angels on Tuesday, a smile spread across his face. For the 29-year-old left-hander, it was hearing the word "Yankees" that made him happiest.. "Youre ecstatic," LeBlanc said. "When I thought about my career path, I never associated it with the New York Yankees, so this is definitely beyond excitement.". LeBlanc joined the Yankees bullpen on Wednesday and will serve as a long reliever, replacing Alfredo Aceves, who was designated for assignment. LeBlanc had been with Triple-A Salt Lake in the Halos system, where he was 5-1 with a 3.69 ERA in nine starts.. The Yankees also recalled right-hander Jose Ramirez from Triple-A Scranton/Wilkes-Barre on Wednesday, optioning right-hander Preston Claiborne to Triple-A.. Yankees manager Joe Girardi said that he will use Ramirez as a multiple-innings pitcher, similar to how he has been using Adam Warren. Ramirez was 2-0 with a save and an 0.84 ERA in seven ...
Incidence and Gender Differences for Handedness among Greek Adolescents and Its Association with Familial History and Brain...Incidence and Gender Differences for Handedness among Greek Adolescents and Its Association with Familial History and Brain...
Handedness is marked by the preference of one hand over another for fine motor tasks, especially writing. Usually, only one hand is considered dominant; however, there are individuals who exhibit the ability to use both hands equally (mixed-handers). The aim of this study was to identify the incidence for handedness in a sample of Greek adolescents and examine possible gender differences in handedness among these adolescents and their siblings. 634 secondary school students (Mean age 13.38, SD = 1.47) who attended mainstream public schools participated in this study. All students completed the Edinburgh Handedness Inventory (EHI). Students were divided in three groups, namely right-handers (an EHI +50 to +100), mixed-handers (an EHI -49 to +49) and left-handers (an EHI -100 to -50). This process resulted in the classification of 544 adolescents (85.8%) as right-handed, 46 adolescents (7.3%) as left-handed and 44 adolescents (6.9%) as non-lateralized (ambidextrous). Contrary to previous research, the
Draft Tracker | 2012 First-Year Player Draft | MLB.comDraft Tracker | 2012 First-Year Player Draft | MLB.com
Comments: Until a sprained ulnar collateral ligament sidelined him for his senior season, it appeared Giolito had a legitimate shot at becoming the first high school right-hander in Draft history to go No. 1 overall.Getting comps to Roy Halladay, in terms of his size, Giolito has been projected to have three above-average to plus offerings at his disposal at the next level. While his fastball sits comfortably in the 93-mph range, he was able to reach back and crank it up to 96 mph when needed. Its a heavy fastball that has some very good late movement, and his downhill plane makes it even tougher. Giolito throws a power curve with a sharp break as it reaches the plate. He also has an excellent changeup that dips like a split-fingered pitch. Hes got above-average command of all three, keeping his pitches down in the strike zone to go along with above-average mound presence and competitiveness.The SoCal right-hander wasnt viewed as having any real weaknesses, and, unlike many prep pitchers, it ...
josh stinson News Archives - We Never Stop Talking Baltimore Sportsjosh stinson News Archives - We Never Stop Talking Baltimore Sports
BALTIMORE - The writing was on the wall for the Orioles after starting pitcher Jake Arrietas early struggles made it apparent he wasnt going to stick in Baltimore.. As was the case for large portions of last season, the rotation carousel is in full motion as right-hander Josh Stinson was the first to receive an opportunity just a few weeks after being claimed off waivers from the Oakland Athletics. The 25-year-old had gone through that process two other times in the last year, giving off the impression that hes talented enough to want but not good enough to keep for the long haul.. Manager Buck Showalter chose Stinson over other candidates Zach Britton and Freddy Garcia - citing positive reviews from Triple-A Norfolk manager Ron Johnson and Tides pitching coach Mike Griffin - and was asked whether this was a one-shot opportunity for the right-hander or if he would receive an extended look spanning a few starts. The Baltimore skippers response was familiar, especially when remembering the ...
As re-sign Bartolo Colon to 1-year deal - SFGateA's re-sign Bartolo Colon to 1-year deal - SFGate
The As re-signed right-hander starter Bartolo Colon, who was suspended for using performance-enhancing substances in August, to a one-year deal. Despite Colons age and his suspension, the As will pay him $3 million next year, and an incentives package could push the deal to between $5 million and $6 million - including provisions in the event that Colon pitches in relief. The As have not shown objections to signing players serving drug suspensions, adding Manny Ramirez on a minor-league deal last season after his second steroid bust. The As continue to have interest in their other free-agent starter, right-hander Brandon McCarthy, Beane said, and Saturdays transaction will not impact the teams efforts to bring him back. Pitching depth is something Oakland has emphasized the past few years, and Colon, McCarthy, Brett Anderson and A.J. Griffin all were on the disabled list at various points in 2012.
Macks Run Haunts As, Lifts Royals - SFGateMack's Run Haunts A's, Lifts Royals - SFGate
The As appeared to pace themselves, too, relying on a fine start by right-hander Mike Oquist and two innings of strong relief by Bill Taylor to carry them to the 11th inning of a 1-1 game. [...] former As outfielder Shane Mack -- one week removed from his trade to Kansas City -- came back to haunt them in the 12th by scoring on a bases loaded single by Johnny Damon in a 4-1 Royals victory. Seemingly worn-out after Thursday nights 12-run, four-homer eruption, the As quietly settled into abeyance against Royals right-hander Hipolito Pichardo, making him look downright nasty by submitting to five strikeouts. Macfarlane reached second when Royals reliever Scott Service, the one-time Giants pitcher, walked Spiezio and Jason McDonald to load the bases with two out. Macfarlane got his third start for the As when rookie catcher A. J. Hinch was delegated to the dugout last night after being knocked in the head by a popup in the sixth inning of Thursday nights 12-7 victory.
Giants notes: Joe Panik placed on concussion DL, Ruben Tejada joins roster, Chris Heston cashes in, plus updates on Tomlinson...Giants notes: Joe Panik placed on concussion DL, Ruben Tejada joins roster, Chris Heston cashes in, plus updates on Tomlinson...
OAKLAND - The Giants spent two months charging to the front of the NL West. Now they are limping to the All-Star break. And the limp is becoming more pronounced by the day.. The Giants officially placed second baseman Joe Panik on the 7-day disabled list with what Manager Bruce Bochy termed a "mild concussion.". The club purchased the contract of former Mets and Cardinals infielder Ruben Tejada, who is in Wednesdays lineup at third base as the Bay Bridge series shifts to the Coliseum for the final two games.. Panik joins third baseman Matt Duffy, outfielder Hunter Pence, infielder Kelby Tomlinson, infielder Ehire Adrianza, right-hander Matt Cain and right-hander Sergio Romo on the disabled list.. The Giants had signed Tejada to a minor league contract just two weeks ago after the St. Louis Cardinals had cut him loose. He was batting .205 with one home run in 11 games for Triple-A Sacrament0.. With Ramiro Peña and Brandon Crawford the only middle infielders on the active roster, and no other ...
Hemispheric Differences in Relational Reasoning: Novel Insights Based on an Old Technique - topic of research paper in...Hemispheric Differences in Relational Reasoning: Novel Insights Based on an Old Technique - topic of research paper in...
HUMAN NEUROSCIENCE. ORIGINAL RESEARCH ARTICLE. published: 09 February 2015 doi: 10.3389/fnhum.2015.00055. Hemispheric differences in relational reasoning: novel insights based on an old technique. Michael S. Vendetti1*f, Elizabeth L. Johnson1,2 f, Connor J. Lemos2 and Silvia A. Bunge1,2. Helen Wills Neuroscience Institute, University of California at Berkeley, Berkeley, CA, USA 2 Department of Psychology, University of California at Berkeley, Berkeley, CA, USA. Edited by:. Jérôme Prado, Centre National de la Recherche Scientifique, France. Reviewed by:. Glenda Andrews, Griffith University, Australia. James Kenneth Kroger, New Mexico State University, USA. *Correspondence:. Michael S. Vendetti, Helen Wills Neuroscience Institute, University of California at Berkeley, 134 Barker Hall, Berkeley, CA 94720, USA e-mail: [email protected] f Shared first authorship.. Relational reasoning, or the ability to integrate multiple mental relations to arrive at a logical conclusion, is a critical ...
jamesons Webbsleuths Forumjameson's Webbsleuths Forum
On removal of the skull cap there is found to be a thin film of subdural hemorrhage measuring approximately 7-8 cc over the surface of the right cerebral hemisphere and extending to the base of the cerebral hemisphere.The 1450 gm brain has a normal overall architecture. Mild narrowing of the sulci and flattening of the gyri are seen. No inflammation is identified.There is a thin film of subarachnoid hemorrhage overlying the entire right cerebral hemisphere. On the right cerebral hemisphere underlying the previously mentioned linear skull fracture is an extensive linear area of purple contusion extending from the right frontal area, posteriorly along the lateral aspect of the parietal region and into the occipital area. This area of contusion measures 8 inches in length with a width of up to 1.75 inches. At the tip of the right temporal lobe is a one-quarter by one-quarter inch similar appearing purple contusion. Only very minimal contusion is present at the tip of the left temporal lobe. This ...
The autopsyThe autopsy
On removal of the skull cap there is found to be a thin film of subdural hemorrhage measuring approximately 7-8 cc over the surface of the right cerebral hemisphere and extending to the base of the cerebral hemisphere.The 1450 gm brain has a normal overall architecture. Mild narrowing of the sulci and flattening of the gyri are seen. No inflammation is identified.There is a thin film of subarachnoid hemorrhage overlying the entire right cerebral hemisphere. On the right cerebral hemisphere underlying the previously mentioned linear skull fracture is an extensive linear area of purple contusion extending from the right frontal area, posteriorly along the lateral aspect of the parietal region and into the occipital area. This area of contusion measures 8 inches in length with a width of up to 1.75 inches. At the tip of the right temporal lobe is a one-quarter by one-quarter inch similar appearing purple contusion. Only very minimal contusion is present at the tip of the left temporal lobe. This ...
Effectiveness of Rehabilitation on the Recovery of Patients Post Right Stroke With Unilateral Spatial Neglect - Full Text View ...Effectiveness of Rehabilitation on the Recovery of Patients Post Right Stroke With Unilateral Spatial Neglect - Full Text View ...
Unilateral spatial neglect (USN) is believed to be a disorder of attention, characterized by impairment in the ability to perceive or respond to stimuli presented to the contralesional space, and which is not attributable to significant sensory or motor deficits. USN has serious consequences for rehabilitation and long term disabilities. Efforts have been made to clarify both the theoretical basis of this phenomenon and the rehabilitation methods that will be best in improving function. The purpose of this study is to try and contribute to both efforts by examining treatment effectiveness of two methods; one targeting general arousal (phasic alerting), and the other targeting increasing awareness to left side stimuli and habit changes. Functional neuroimaging methods (PET [positron emission tomography] and fMRI [functional magnetic resonance imaging]) have been applied to understand the functional anatomy of the brain during mental processes. Only a few attempts have been made to use functional ...
A dual task priming investigation of right hemisphere inhibition for people with left hemisphere lesions | Behavioral and Brain...A dual task priming investigation of right hemisphere inhibition for people with left hemisphere lesions | Behavioral and Brain...
Language processing is dynamic and requires the participation of both cerebral hemispheres. The left hemisphere (LH) is considered to be the language dominant hemisphere, however, the right hemisphere (RH) is also accepted to play an important role in language processing. The RH has been linked with processing of discourse, comprehension of inferences, ambiguity and metaphoric language, and underlying much of this, is its role in lexical-semantic processing [see for a review of RH language processing [1]]. According to dynamic models of cognitive functioning bilateral lexical-semantic processing will involve both interhemispheric activation and inhibition [2]. The language dominant LH is suggested to inhibit aspects of RH participation in order to maximize the efficiency of word level processing and meaning selection [2-4]. Interhemispheric inhibition has been suggested to limit the RHs ability to perform to its maximum semantic processing capacity under normal processing conditions, and to ...
Detection and Predictive Value of Fractional Anisotropy Changes of the Corticospinal Tract in the Acute Phase of a Stroke |...Detection and Predictive Value of Fractional Anisotropy Changes of the Corticospinal Tract in the Acute Phase of a Stroke |...
Results-The FA laterality index for the cerebral peduncle-regions of interest was a poor predictor of 3-month outcome (R2=0.044; P=0.137), whereas the slope over the FA laterality index of the nearest-5-slices showed a relatively weak but significant prediction (R2=0.11; P=0.022) with the affected side having lower FA values. Initial upper extremity Fugl-Meyer (R2=0.69; P,0.001) and the weighted CST lesion load (R2=0.71; P,0.001) were strong predictors of 3-month outcome. In multivariate analyses, controlling for initial upper extremity Fugl-Meyer, weighted CST lesion load, and days-of-therapy, neither the FA laterality index of the cerebral peduncle nor the slope over the FA laterality index of the nearest-5-slices significantly contributed to the prediction of 86% of the variance in the upper extremity Fugl-Meyer at 3 months. ...
Near-infrared spectroscopy (NIRS) is certainly a novel technology for low-cost noninvasiveNear-infrared spectroscopy (NIRS) is certainly a novel technology for low-cost noninvasive
... brain imaging suitable for use in virtually all subject and patient populations. left IFG right IFG) than between IFG and MFG in the same hemisphere. Laterality indexes were calculated as t-values for the left > right comparisons of intrinsic connectivity within each regional group of channels in each subject. Regardless of handedness, the group average laterality indexes were negative thus revealing significantly higher connectivity in the right hemisphere in the majority of RH subjects and in both LH subjects. The analysis of Granger Causality between hemispheres has also shown a greater flow of info from the proper left hemisphere which might point to a significant role of the proper hemisphere in the relaxing condition. These data motivate additional exploration of the NIRS connection and its software for the evaluation of hemispheric interactions within the practical architecture of the mind. ...
Epidemic cycling in a multi-strain SIRS epidemic network model | Theoretical Biology and Medical Modelling | Full TextEpidemic cycling in a multi-strain SIRS epidemic network model | Theoretical Biology and Medical Modelling | Full Text
begin{array}{l}\begin{array}{l}\frac{d}{dt}\left[S{I}_1\right]=\lambda \left(\left[SS{I}_1\right]+\left[SS{J}_1\right]-\left[{I}_1S{I}_1\right]-\left[{J}_1S{I}_1\right]-\left[{I}_2S{I}_1\right]-\left[{J}_2S{I}_1\right]\right)-\left(\lambda +\gamma \right)\left[S{I}_1\right]\\ {}+\sigma \left(\left[R{I}_1\right]+\left[{R}_1{I}_1\right]+\left[{R}_2{I}_1\right]\right)+\mu \left(\kappa \left[{I}_1\right]-2\left[S{I}_1\right]\right)\end{array}\hfill \\ {}\begin{array}{l}\frac{d}{dt}\left[S{I}_2\right]=\lambda \left(\left[SS{I}_2\right]+\left[SS{J}_2\right]-\left[{I}_1S{I}_2\right]-\left[{J}_1S{I}_2\right]-\left[{I}_2S{I}_2\right]-\left[{J}_2S{I}_2\right]\right)-\left(\lambda +\gamma \right)\left[S{I}_2\right]\\ {}+\sigma \left(\left[R{I}_2\right]+\left[{R}_1{I}_2\right]+\left[{R}_2{I}_2\right]\right)+\mu \left(\kappa \left[{I}_2\right]-2\left[S{I}_2\right]\right)\end{array}\hfill \\ {}\begin{array}{l}\frac{d}{dt}\left[S{R}_1\right]=-\lambda ...
Human taste cortical areas studied with functional magnetic resonance imaging: evidence of functional lateralization related to...Human taste cortical areas studied with functional magnetic resonance imaging: evidence of functional lateralization related to...
Whole-brain functional magnetic resonance imaging was used to detect local hemodynamic changes reflecting cortical activation in five left handed and five right handed human subjects during bilateral stimulation of the tongue with various tastes. Activation was found bilaterally in the insula and th …
Structural Asymmetry of AcrB Trimer Suggests a Peristaltic Pump Mechanism | ScienceStructural Asymmetry of AcrB Trimer Suggests a Peristaltic Pump Mechanism | Science
The AcrA/AcrB/TolC complex spans the inner and outer membranes of Escherichia coli and serves as its major drug-resistance pump. Driven by the proton motive force, it mediates the efflux of bile salts, detergents, organic solvents, and many structurally unrelated antibiotics. Here, we report a crystallographic structure of trimeric AcrB determined at 2.9 and 3.0 angstrom resolution in space groups that allow asymmetry of the monomers. This structure reveals three different monomer conformations representing consecutive states in a transport cycle. The structural data imply an alternating access mechanism and a novel peristaltic mode of drug transport by this type of transporter.. ...
The Two Hemispheres Of The Brain - NeurolonThe Two Hemisphere's Of The Brain - Neurolon
We all know that the brain has two separate hemispheres but many people are not exactly sure what the function of each of these hemispheres are. The left hemisphere is responsible for logical thinking and communication skills. While the right hemisphere is responsible for symbolic thought and creativity, although recent research has been contradicting, proving that there are parts of the right hemisphere for creativity and vice versa. In left-handed people the functions are reversed. The left hemisphere is said to be dominant because of two specialized areas: Brocas area (B), motor cortex responsible for speech and Wernickes area (W), the cortex responsible for verbal comprehension.. The corpus callosum is located deep in the interhemispheric fissure, or sagittal fissure is the structure responsible for the connection between the two cerebral hemispheres. This structure, composed of nerve fibers white (Freixes axon wrapped in myelin), is responsible for the exchange of information between the ...
Ab)normality of international migration law: normative and structural asymmetries and contradictions | Interest Group on...Ab)normality of international migration law: normative and structural asymmetries and contradictions | Interest Group on...
Blogpost by a member of our Interest Group by Tamás Molnár International migration law (hereinafter: IML) is a multi-layered body of law. It is composed of an ever-growing number of norms relating to various branches of international law such as human rights law, international refugee law, international labour law, international trade law, law of the…
Platelet lysate stimulated fibroblas - lightttryingg96 funPlatelet lysate stimulated fibroblas - lightttryingg96 fun
Decreased diameter of the hepatic arteries following closing of a portacaval shunt Tandem-repeat protein domains, composed of repeated units of conserved stretches of 20-40 amino acids, are sildenafil 100mg required for a wide array of biological functions. Active demethylation in mouse zygotes involves cytosine deamination and base excision repair. Kruskal-Wallis test followed by post-hoc analysis was performed to test for differences between controls and OSA subgroups for testosterone, fatigue components and sleepiness. Cosmic voids refer sildenafil citrate 100mg to the large empty regions in the Universe with a very low number density of galaxies. To date, relapse risk can be female viagra pills predicted by leukocyte and platelet counts only. Rapamycin shows beneficial effects by reducing UUO-induced renal hypoxia, inflammation and tubulointerstitial fibrosis. Left-handedness: association with college major, familial sinistrality, allergies, and asthma.. Given that increased TNF-alpha ...
Left Brain Right Brain closes - SkepticoLeft Brain Right Brain closes - Skeptico
Kevin Leitchs Left Brain Right Brain autism blog closed today. Click the link and you will discover why: The reason LB/RB is shutting is because I cannot continue to allow my beautiful eldest girl to be exposed to the hatred...
Left Brain Right Brain closes - SkepticoLeft Brain Right Brain closes - Skeptico
Kevin Leitchs Left Brain Right Brain autism blog closed today. Click the link and you will discover why: The reason LB/RB is shutting is because I cannot continue to allow my beautiful eldest girl to be exposed to the hatred...
Isolation of Region-specific Microglia from One Adult Mouse Brain Hemisphere for Deep Single-cell RNA Sequencing | ProtocolIsolation of Region-specific Microglia from One Adult Mouse Brain Hemisphere for Deep Single-cell RNA Sequencing | Protocol
We provide a protocol for isolation of microglia from different dissected regions of an adult mouse brain hemisphere, followed by...
Left cerebral hemisphere - function | Nicklaus Childrens HospitalLeft cerebral hemisphere - function | Nicklaus Children's Hospital
The left cerebral hemisphere controls movement of the right side of the body. Depending on the severity, a stroke affecting the left cerebral hemisphere may result in loss of motor skills and sensations on the right side of the body, and may also cause loss of the ability to speak and understand words ...
CARA MENGAKTIFKAN OTAK TENGAH: Music to activate midbrain call sms 0813 71 3636 11 http://tokoonlin-e.com http:/...CARA MENGAKTIFKAN OTAK TENGAH: Music to activate midbrain call sms 0813 71 3636 11 http://tokoonlin-e.com http:/...
Midbrain activation is a new hot topic now. When we were children we read about superheroes that can see through wall. We saw in movies that a kung-fu master can fight with his eyes blinfolded. Midbrain (mesencephalon) is one part of brain that has a controlling function. Midbrain is act like a brain manager to manage the function of right and left brain. When we were a baby, our midbrain functioned well.. After 5 years old, midbrain of most of us becomes less active. Midbrain looses its capability to manage the left and right brain. The manager becomes lazy now. What happened with the left and right brain? Because this brain is the bigger brain, they still functioned well, but without the manager. These two big brains compete each other. Depend of the circumstances and character, one of the brains became a winner, and the other became looser.. If the left brain is the winner, left brain is used to solve most of the problem. We call this child left brain dominant. Children with left brain ...
Asymmetries in Visual Perception - A Comical Perspective - Student Theses Faculty of Science and EngineeringAsymmetries in Visual Perception - A Comical Perspective - Student Theses Faculty of Science and Engineering
An emerging topic in behavioural biology and psychology is brain lateralization. E.g. the asymmetrical organization of the brain in the left right plain. At first, this phenomenon was described only in humans, and was regarded as one of the extraordinary features of our „superior‟ brain. Later, it was discovered that lateralization exists in many animal species. This asymmetrical organization of the brain results in asymmetrical output called behaviour. The most common example of this in humans is handedness. Asymmetry is described in more and more behaviours, but its origin remains debated. Are they simply „nature‟; hard-coded in our DNA? Or are they „nurture‟ and caused by environmental conditions or experience? The subject of this thesis is asymmetries in visual perception in humans. It is easy to think we perceive the world in an unbiased way. But with an asymmetric brain, it is more likely that we also have asymmetrical perception. This study tries to answer some important ...
2020 Dodgers spring training preview: starting rotation2020 Dodgers spring training preview: starting rotation
Two members of the Dodgers postseason starting rotation - Ryu and veteran left-hander Rich Hill - have signed elsewhere as free agents (the Blue Jays and Twins, respectively). The two take long medical records with them. But they combined for 81 starts over the past two seasons with a 36-14 record and 2.66 ERA. The Dodgers dipped into the deep waters of free agency but were rebuffed by Gerrit Cole and Stephen Strasburg. Instead, former Brewers right-hander Jimmy Nelson (coming back after two seasons of limited activity following shoulder surgery) and former Dodgers left-hander Alex Wood (limited to seven starts with the Reds due to a back injury last year) have been signed as low-cost bounceback candidates. They could add experienced depth to the rotation behind Buehler, Kershaw and Kenta Maeda. Along with Wood and Nelson, Julio Urias, May, Gonsolin and Ross Stripling will compete for starts and give the Dodgers their usual depth, allowing them to spread the regular-season workload ...
Left Brain | Definition of Left Brain by Merriam-WebsterLeft Brain | Definition of Left Brain by Merriam-Webster
Define left brain: the left cerebral hemisphere of the human brain especially when viewed in terms of its predominant thought processes (such as…
neurology - Do the Left Brain and Right Brain have different functions? - Skeptics Stack Exchangeneurology - Do the Left Brain and Right Brain have different functions? - Skeptics Stack Exchange
definite evidence for language lateralisation arose from studies in split brain patients. In these patients, the nerve fibres that connect the two hemispheres were severed in order to stop the spread of epileptic seizures from one hemisphere to the other ... studies of these split brain patients were carried out in the 1960s and 1970s by the Nobel Prize laureate Roger Sperry and his colleagues at the Californian Institute of Technology ... Sperrys experiments yielded an amazing result: when split brain patients processed an object with their right hand, i.e. with their left hemisphere, they could easily name the object. In contrast, when an object was touched with the left hand, i.e. processed by the right hemisphere, they could not name it!. ...
PUBLIKATIONEN: Institut für Neuro- und BioinformatikPUBLIKATIONEN: Institut für Neuro- und Bioinformatik
article{MaDoSpGaHeBaHe12, author = {Bjorn Machner and Michael Dorr and Andreas Sprenger and Janina von der Gablentz and Wolfgang Heide and Erhardt Barth and Christoph Helmchen}, title = {Impact of dynamic bottom-up features and top-down control on the visual exploration of moving real-world scenes in hemispatial neglect}, journal = {Neuropsychologia}, volume = {50}, year = {2012}, pages = {2415--2425}, pdf = {http://www.inb.uni-luebeck.de/publications/pdfs/MaDoSpGaHeBaHe12.pdf}, url = {http://dx.doi.org/10.1016/j.neuropsychologia.2012.06.012}, abstract = {. Patients with hemispatial neglect are severely impaired in orienting their attention to contralesional hemispace. Although motion is one of the strongest attentional cues in humans, it is still unknown how neglect patients visually explore their moving real-world environment.. We therefore recorded eye movements at bedside in 19 patients with hemispatial neglect following acute right hemisphere stroke, 14 right-brain damaged patients ...
Astros report: McHugh battling blister - HoustonChronicle.comAstros report: McHugh battling blister - HoustonChronicle.com
MINNEAPOLIS - Astros righthander Collin McHugh thinks the blister on the middle finger of his throwing hand wont be a problem going forward. McHugh said he noticed the blister in his bullpen before the game, and it started to become an issue from the third inning on. Crain threw a bullpen Saturday as he works his way back from offseason shoulder surgery. With the bullpen burnt out after starting pitcher Scott Feldman recorded just five outs Saturday, the Astros on Sunday called up lefthander Rudy Owens for his second stint in the big leagues. Owens has always been a starting pitcher, so it stands to reason the Astros wouldnt want to keep him out of a rotation setting for long. Shortstop Jonathan Villar (right elbow) returned to the starting lineup for the first time since being hit by a pitch on Tuesday and went 3-for-5, raising his average to .205. … Of the 41 players the Astros selected in the MLB draft, a whopping 37 were from the collegiate ranks.
Tài liệu Double Helical Structure chọn lọc - TaiLieu.VNTài liệu Double Helical Structure chọn lọc - TaiLieu.VN
The biological ion channel gramicidin A (gA) was modified by synthetic means to obtain the tail-to-tail linked asymmetric gA-derived dimer com-pound3. Single-channel current measurements for 3in planar lipid bilayers exhibit an Eisenman I ion selectivity for alkali cations. The structural asymmetry does not lead to an observable functional asymmetry. The structure of 3in solution without and with Cs cations was investigated by 1 H-NMR spectroscopy. In CDCl3 ⁄CD3OH (1 : 1, v⁄v),3forms a mixture of double-strandedb-helices.... ...
Phillies option Valdes; recall Rosenberg - PhillyPhillies option Valdes; recall Rosenberg - Philly
The Phillies optioned lefthander Raul Valdes to Lehigh Valley and called up righthander B.J. Rosenberg from the IronPigs. - Marc Narducci, Philadelphia Inquirer
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Evolution of a unique predatory feeding apparatus: functional anatomy, development and a genetic locus for jaw laterality in...Evolution of a unique predatory feeding apparatus: functional anatomy, development and a genetic locus for jaw laterality in...
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Language lateralityParietal LobeBehaviorFMRIDisordersTranscranialMagneticBrainFNIRSSubjectsPosteriorStructural and functionalConnectivityIndexHumanPatientsStudyPerformanceMotor
Language laterality1
Parietal Lobe1
  • Several lines of evidence, from functional imaging as well as investigations of patients with parietal damage, demonstrate that parts of the human inferior parietal lobe (IPL) have non-spatial functions. (ox.ac.uk)
Behavior1
  • Other research interests include stone tool use and manufacture, experimental archaeology, working memory, laterality, locomotion, comparative primate behavior, and social transmission/learning of skill-based behaviors. (illinoisstate.edu)
FMRI3
  • We measured brain activity in seven healthy volunteers by using positron emission tomography (PET) and in eight healthy volunteers by using functional magnetic resonance imaging (fMRI). (ox.ac.uk)
  • FMRI measures of laterality index (LI) are not totally concordant with Wada test, and show variability with analysis method. (ismrm.org)
  • Dr. Shelby Putt is a biological anthropologist whose research program combines functional neuroimaging technology (fNIRS and fMRI) with the fossil and archaeological record to investigate the evolution of human language, cognition, and brain size. (illinoisstate.edu)
Disorders1
Transcranial2
Magnetic1
  • Here, functional magnetic resonance imaging was used to examine how brainstem and cortical activity related to a short breath hold is modulated by the opioid remifentanil. (ox.ac.uk)
Brain2
  • This observation and evidence obtained from functional imaging for altered patterns of activation after brain injury suggest that cortical reorganization may contribute to recovery. (ox.ac.uk)
  • METHODS: We used functional MRI to study brain activation with dominant hand movement in right-handed healthy control subjects (n=20) and in patients after subcortical ischemic infarcts causing mild to moderate right hemiparesis (n=8). (ox.ac.uk)
FNIRS1
  • Seven-month-old infants ( N = 24) were shown photographs of women portraying happy expressions, and neural activity was recorded using functional near-infrared spectroscopy (fNIRS). (frontiersin.org)
Subjects1
Posterior3
  • Voxel-wise analysis spatially constrained in the left fronto-temporal semantic control network identified two regions with altered functional connectivity (FC) in AD patients, specifically in the pars opercularis (POp, BA44) and in the posterior middle temporal gyrus (pMTG, BA21). (marbilab.eu)
  • Functional MRI detects posterior shifts in primary sensorimotor cortex activation after stroke: evidence of local adaptive reorganization? (ox.ac.uk)
  • To decompose the neuroanatomical substrates of the syndrome and to gain insights into the structural and functional organization of visuospatial attention, we performed a systematic evaluation of lesion patterns in a group of simultanagnosic patients compared with patients with either (i) unilateral visuospatial deficits (neglect and/or extinction) or (ii) bilateral posterior lesions without visuospatial deficits, using overlap/subtraction analyses, estimation of lesion volume, and a lesion laterality index. (ox.ac.uk)
Structural and functional1
  • The evidence comes from a range of approaches, both in vivo (neuropsychology, structural and functional imaging) and post mortem (histology, morphometry, gene expression, and neurochemistry). (ox.ac.uk)
Connectivity1
Index1
  • Lesion overlap/subtraction analyses, lesion laterality index, and voxel-based morphometry measures converged to indicate that bilateral parieto-occipital WM disconnections are both distinctive and necessary to create symptoms associated with simultanagnosia. (ox.ac.uk)
Human1
  • PPC-M1 interplay was similar within the left hemisphere but was specific to (contralateral) rightward planned reaches, with peaks at 50 and 100 ms. Functional interplay between human parietal and motor cortex is enhanced during early stages of planning a reach in the contralateral direction. (ox.ac.uk)
Patients1
  • Analysis of EMG activity may provide a sensitive means of identifying dystonic patients who are likely to be most responsive to functional neurosurgical intervention. (ox.ac.uk)
Study1
  • This study investigated the extent to which any impaired performance on imitation tasks is due to a functional mirroring deficit by comparing the performance of adults with ASD on imitative and non-imitative versions of the 'pen-and-cups' task. (ox.ac.uk)
Performance1
  • Adults with ASD were as impaired on each non-imitative version of the task as they were on the imitative version, suggesting that the impaired performance on the imitation task was not due to a functional mirroring deficit. (ox.ac.uk)
Motor1
  • These (and other changes) suggest that modulation of widely distributed parts of the cortical network for motor control may contribute to adaptations leading to functional recovery after stroke. (ox.ac.uk)

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