Electroencephalography
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.
Epilepsies, Partial
Conditions characterized by recurrent paroxysmal neuronal discharges which arise from a focal region of the brain. Partial seizures are divided into simple and complex, depending on whether consciousness is unaltered (simple partial seizure) or disturbed (complex partial seizure). Both types may feature a wide variety of motor, sensory, and autonomic symptoms. Partial seizures may be classified by associated clinical features or anatomic location of the seizure focus. A secondary generalized seizure refers to a partial seizure that spreads to involve the brain diffusely. (From Adams et al., Principles of Neurology, 6th ed, pp317)
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)
Alpha Rhythm
Seizures
Signal Processing, Computer-Assisted
Brain Mapping
Delta Rhythm
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.
Magnetic Resonance Imaging
Cerebral Cortex
Evoked Potentials
Electrical responses recorded from nerve, muscle, SENSORY RECEPTOR, or area of the CENTRAL NERVOUS SYSTEM following stimulation. They range from less than a microvolt to several microvolts. The evoked potential can be auditory (EVOKED POTENTIALS, AUDITORY), somatosensory (EVOKED POTENTIALS, SOMATOSENSORY), visual (EVOKED POTENTIALS, VISUAL), or motor (EVOKED POTENTIALS, MOTOR), or other modalities that have been reported.
Beta Rhythm
Evoked Potentials, Visual
Evoked Potentials, Somatosensory
Status Epilepticus
A prolonged seizure or seizures repeated frequently enough to prevent recovery between episodes occurring over a period of 20-30 minutes. The most common subtype is generalized tonic-clonic status epilepticus, a potentially fatal condition associated with neuronal injury and respiratory and metabolic dysfunction. Nonconvulsive forms include petit mal status and complex partial status, which may manifest as behavioral disturbances. Simple partial status epilepticus consists of persistent motor, sensory, or autonomic seizures that do not impair cognition (see also EPILEPSIA PARTIALIS CONTINUA). Subclinical status epilepticus generally refers to seizures occurring in an unresponsive or comatose individual in the absence of overt signs of seizure activity. (From N Engl J Med 1998 Apr 2;338(14):970-6; Neurologia 1997 Dec;12 Suppl 6:25-30)
Monitoring, Physiologic
Brain-Computer Interfaces
Event-Related Potentials, P300
A late-appearing component of the event-related potential. P300 stands for a positive deflection in the event-related voltage potential at 300 millisecond poststimulus. Its amplitude increases with unpredictable, unlikely, or highly significant stimuli and thereby constitutes an index of mental activity. (From Campbell, Psychiatric Dictionary, 6th ed)
Term Birth
Persistent Vegetative State
Scalp
Electrooculography
Recording of the average amplitude of the resting potential arising between the cornea and the retina in light and dark adaptation as the eyes turn a standard distance to the right and the left. The increase in potential with light adaptation is used to evaluate the condition of the retinal pigment epithelium.
Epilepsy, Frontal Lobe
A localization-related (focal) form of epilepsy characterized by seizures which arise in the FRONTAL LOBE. A variety of clinical syndromes exist depending on the exact location of the seizure focus. Frontal lobe seizures may be idiopathic (cryptogenic) or caused by an identifiable disease process such as traumatic injuries, neoplasms, or other macroscopic or microscopic lesions of the frontal lobes (symptomatic frontal lobe seizures). (From Adams et al., Principles of Neurology, 6th ed, pp318-9)
Spasms, Infantile
An epileptic syndrome characterized by the triad of infantile spasms, hypsarrhythmia, and arrest of psychomotor development at seizure onset. The majority present between 3-12 months of age, with spasms consisting of combinations of brief flexor or extensor movements of the head, trunk, and limbs. The condition is divided into two forms: cryptogenic (idiopathic) and symptomatic (secondary to a known disease process such as intrauterine infections; nervous system abnormalities; BRAIN DISEASES, METABOLIC, INBORN; prematurity; perinatal asphyxia; TUBEROUS SCLEROSIS; etc.). (From Menkes, Textbook of Child Neurology, 5th ed, pp744-8)
Sleep Stages
Epilepsy, Generalized
Recurrent conditions characterized by epileptic seizures which arise diffusely and simultaneously from both hemispheres of the brain. Classification is generally based upon motor manifestations of the seizure (e.g., convulsive, nonconvulsive, akinetic, atonic, etc.) or etiology (e.g., idiopathic, cryptogenic, and symptomatic). (From Mayo Clin Proc, 1996 Apr;71(4):405-14)
Consciousness Disorders
Electrodes, Implanted
Sleep
Monitoring, Intraoperative
Epilepsy, Tonic-Clonic
A generalized seizure disorder characterized by recurrent major motor seizures. The initial brief tonic phase is marked by trunk flexion followed by diffuse extension of the trunk and extremities. The clonic phase features rhythmic flexor contractions of the trunk and limbs, pupillary dilation, elevations of blood pressure and pulse, urinary incontinence, and tongue biting. This is followed by a profound state of depressed consciousness (post-ictal state) which gradually improves over minutes to hours. The disorder may be cryptogenic, familial, or symptomatic (caused by an identified disease process). (From Adams et al., Principles of Neurology, 6th ed, p329)
Artifacts
Any visible result of a procedure which is caused by the procedure itself and not by the entity being analyzed. Common examples include histological structures introduced by tissue processing, radiographic images of structures that are not naturally present in living tissue, and products of chemical reactions that occur during analysis.
Epilepsy, Absence
A childhood seizure disorder characterized by rhythmic electrical brain discharges of generalized onset. Clinical features include a sudden cessation of ongoing activity usually without loss of postural tone. Rhythmic blinking of the eyelids or lip smacking frequently accompanies the SEIZURES. The usual duration is 5-10 seconds, and multiple episodes may occur daily. Juvenile absence epilepsy is characterized by the juvenile onset of absence seizures and an increased incidence of myoclonus and tonic-clonic seizures. (Menkes, Textbook of Child Neurology, 5th ed, p736)
Wakefulness
Communication Aids for Disabled
Equipment that provides mentally or physically disabled persons with a means of communication. The aids include display boards, typewriters, cathode ray tubes, computers, and speech synthesizers. The output of such aids includes written words, artificial speech, language signs, Morse code, and pictures.
Photic Stimulation
Transcranial Magnetic Stimulation
A technique that involves the use of electrical coils on the head to generate a brief magnetic field which reaches the CEREBRAL CORTEX. It is coupled with ELECTROMYOGRAPHY response detection to assess cortical excitability by the threshold required to induce MOTOR EVOKED POTENTIALS. This method is also used for BRAIN MAPPING, to study NEUROPHYSIOLOGY, and as a substitute for ELECTROCONVULSIVE THERAPY for treating DEPRESSION. Induction of SEIZURES limits its clinical usage.
Electrodes
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)
Occipital Lobe
Evoked Potentials, Auditory
Epilepsy, Reflex
A subtype of epilepsy characterized by seizures that are consistently provoked by a certain specific stimulus. Auditory, visual, and somatosensory stimuli as well as the acts of writing, reading, eating, and decision making are examples of events or activities that may induce seizure activity in affected individuals. (From Neurol Clin 1994 Feb;12(1):57-8)
Functional Laterality
Consciousness Monitors
Image Processing, Computer-Assisted
Models, Neurological
Hypoxia-Ischemia, Brain
A disorder characterized by a reduction of oxygen in the blood combined with reduced blood flow (ISCHEMIA) to the brain from a localized obstruction of a cerebral artery or from systemic hypoperfusion. Prolonged hypoxia-ischemia is associated with ISCHEMIC ATTACK, TRANSIENT; BRAIN INFARCTION; BRAIN EDEMA; COMA; and other conditions.
Unconsciousness
Psychomotor Performance
Malformations of Cortical Development
Abnormalities in the development of the CEREBRAL CORTEX. These include malformations arising from abnormal neuronal and glial CELL PROLIFERATION or APOPTOSIS (Group I); abnormal neuronal migration (Group II); and abnormal establishment of cortical organization (Group III). Many INBORN METABOLIC BRAIN DISORDERS affecting CNS formation are often associated with cortical malformations. They are common causes of EPILEPSY and developmental delay.
Parietal Lobe
Frontal Lobe
Epilepsy, Complex Partial
A disorder characterized by recurrent partial seizures marked by impairment of cognition. During the seizure the individual may experience a wide variety of psychic phenomenon including formed hallucinations, illusions, deja vu, intense emotional feelings, confusion, and spatial disorientation. Focal motor activity, sensory alterations and AUTOMATISM may also occur. Complex partial seizures often originate from foci in one or both temporal lobes. The etiology may be idiopathic (cryptogenic partial complex epilepsy) or occur as a secondary manifestation of a focal cortical lesion (symptomatic partial complex epilepsy). (From Adams et al., Principles of Neurology, 6th ed, pp317-8)
Theta Rhythm
Contingent Negative Variation
Nerve Net
A meshlike structure composed of interconnecting nerve cells that are separated at the synaptic junction or joined to one another by cytoplasmic processes. In invertebrates, for example, the nerve net allows nerve impulses to spread over a wide area of the net because synapses can pass information in any direction.
Brain Diseases
Electroencephalography Phase Synchronization
Adjustment of BRAIN WAVES from two or more neuronal groups within or across a brain structure (e.g., cortical and limbic brain structures) to become uniform in EEG oscillation patterns in response to a stimulus. It is interpreted as a brain integration sign during many processes such as learning, memory, and perception and involves reciprocal neural connections.
Anticipation, Psychological
Attention
Point-of-Care Systems
Coma
Electromyography
Visual Perception
Sleep Deprivation
Neuropsychological Tests
Diagnosis, Computer-Assisted
Spectroscopy, Near-Infrared
A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxygenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.
Video Recording
Unnecessary Procedures
Neuroimaging
Arousal
Motor Cortex
Area of the FRONTAL LOBE concerned with primary motor control located in the dorsal PRECENTRAL GYRUS immediately anterior to the central sulcus. It is comprised of three areas: the primary motor cortex located on the anterior paracentral lobule on the medial surface of the brain; the premotor cortex located anterior to the primary motor cortex; and the supplementary motor area located on the midline surface of the hemisphere anterior to the primary motor cortex.
Temporal Lobe
Auditory Perception
Discriminant Analysis
Neurologic Examination
Sleep, REM
Brain Ischemia
Head
Algorithms
Endarterectomy, Carotid
Analysis of Variance
Reproducibility of Results
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
Hallucinations
Hypothermia, Induced
Fourier Analysis
Analysis based on the mathematical function first formulated by Jean-Baptiste-Joseph Fourier in 1807. The function, known as the Fourier transform, describes the sinusoidal pattern of any fluctuating pattern in the physical world in terms of its amplitude and its phase. It has broad applications in biomedicine, e.g., analysis of the x-ray crystallography data pivotal in identifying the double helical nature of DNA and in analysis of other molecules, including viruses, and the modified back-projection algorithm universally used in computerized tomography imaging, etc. (From Segen, The Dictionary of Modern Medicine, 1992)
Task Performance and Analysis
Movement
The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior.
Oxygen
Spectrum Analysis
Sensitivity and Specificity
Data Interpretation, Statistical
Tomography, Emission-Computed, Single-Photon
A method of computed tomography that uses radionuclides which emit a single photon of a given energy. The camera is rotated 180 or 360 degrees around the patient to capture images at multiple positions along the arc. The computer is then used to reconstruct the transaxial, sagittal, and coronal images from the 3-dimensional distribution of radionuclides in the organ. The advantages of SPECT are that it can be used to observe biochemical and physiological processes as well as size and volume of the organ. The disadvantage is that, unlike positron-emission tomography where the positron-electron annihilation results in the emission of 2 photons at 180 degrees from each other, SPECT requires physical collimation to line up the photons, which results in the loss of many available photons and hence degrades the image.
Propofol
An intravenous anesthetic agent which has the advantage of a very rapid onset after infusion or bolus injection plus a very short recovery period of a couple of minutes. (From Smith and Reynard, Textbook of Pharmacology, 1992, 1st ed, p206). Propofol has been used as ANTICONVULSANTS and ANTIEMETICS.
Biological Clocks
Thalamus
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.
Anesthetics, Intravenous
Ultrashort-acting anesthetics that are used for induction. Loss of consciousness is rapid and induction is pleasant, but there is no muscle relaxation and reflexes frequently are not reduced adequately. Repeated administration results in accumulation and prolongs the recovery time. Since these agents have little if any analgesic activity, they are seldom used alone except in brief minor procedures. (From AMA Drug Evaluations Annual, 1994, p174)
Hypnotics and Sedatives
Nervous System Diseases
Brain Injuries
Acute and chronic (see also BRAIN INJURIES, CHRONIC) injuries to the brain, including the cerebral hemispheres, CEREBELLUM, and BRAIN STEM. Clinical manifestations depend on the nature of injury. Diffuse trauma to the brain is frequently associated with DIFFUSE AXONAL INJURY or COMA, POST-TRAUMATIC. Localized injuries may be associated with NEUROBEHAVIORAL MANIFESTATIONS; HEMIPARESIS, or other focal neurologic deficits.
Schizophrenia
Ultrasonography, Doppler, Transcranial
A non-invasive technique using ultrasound for the measurement of cerebrovascular hemodynamics, particularly cerebral blood flow velocity and cerebral collateral flow. With a high-intensity, low-frequency pulse probe, the intracranial arteries may be studied transtemporally, transorbitally, or from below the foramen magnum.
Auditory Cortex
Periodicity
Polysomnography
Simultaneous and continuous monitoring of several parameters during sleep to study normal and abnormal sleep. The study includes monitoring of brain waves, to assess sleep stages, and other physiological variables such as breathing, eye movements, and blood oxygen levels which exhibit a disrupted pattern with sleep disturbances.
Evoked Potentials, Motor
Nonlinear Dynamics
The study of systems which respond disproportionately (nonlinearly) to initial conditions or perturbing stimuli. Nonlinear systems may exhibit "chaos" which is classically characterized as sensitive dependence on initial conditions. Chaotic systems, while distinguished from more ordered periodic systems, are not random. When their behavior over time is appropriately displayed (in "phase space"), constraints are evident which are described by "strange attractors". Phase space representations of chaotic systems, or strange attractors, usually reveal fractal (FRACTALS) self-similarity across time scales. Natural, including biological, systems often display nonlinear dynamics and chaos.
Predictive Value of Tests
In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.
Visual Cortex
Computer Simulation
Pattern Recognition, Visual
Prefrontal Cortex
The rostral part of the frontal lobe, bounded by the inferior precentral fissure in humans, which receives projection fibers from the MEDIODORSAL NUCLEUS OF THE THALAMUS. The prefrontal cortex receives afferent fibers from numerous structures of the DIENCEPHALON; MESENCEPHALON; and LIMBIC SYSTEM as well as cortical afferents of visual, auditory, and somatic origin.
Prospective Studies
Somatosensory Cortex
Cognition Disorders
Positron-Emission Tomography
An imaging technique using compounds labelled with short-lived positron-emitting radionuclides (such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism. It has been useful in study of soft tissues such as CANCER; CARDIOVASCULAR SYSTEM; and brain. SINGLE-PHOTON EMISSION-COMPUTED TOMOGRAPHY is closely related to positron emission tomography, but uses isotopes with longer half-lives and resolution is lower.
Tomography, X-Ray Computed
Treatment Outcome
User-Computer Interface
Hippocampus
A curved elevation of GRAY MATTER extending the entire length of the floor of the TEMPORAL HORN of the LATERAL VENTRICLE (see also TEMPORAL LOBE). The hippocampus proper, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation.
Depressive Disorder, Major
Recognition (Psychology)
Severity of Illness Index
Image Interpretation, Computer-Assisted
Memory
Cues
Emotions
Statistics as Topic
Case-Control Studies
Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of an attribute to the disease is examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group.
Physiological properties of raphe magnus neurons during sleep and waking. (1/10381)
Neurons in the medullary raphe magnus (RM) that are important in the descending modulation of nociceptive transmission are classified by their response to noxious tail heat as ON, OFF, or NEUTRAL cells. Experiments in anesthetized animals demonstrate that RM ON cells facilitate and OFF cells inhibit nociceptive transmission. Yet little is known of the physiology of these cells in the unanesthetized animal. The first aim of the present experiments was to determine whether cells with ON- and OFF-like responses to noxious heat exist in the unanesthetized rat. Second, to determine if RM cells have state-dependent discharge, the activity of RM neurons was recorded during waking and sleeping states. Noxious heat applied during waking and slow wave sleep excited one group of cells (ON-U) in unanesthetized rats. Other cells were inhibited by noxious heat (OFF-U) applied during waking and slow wave sleep states in unanesthetized rats. NEUTRAL-U cells did not respond to noxious thermal stimulation applied during either slow wave sleep or waking. ON-U and OFF-U cells were more likely to respond to noxious heat during slow wave sleep than during waking and were least likely to respond when the animal was eating or drinking. Although RM cells rarely respond to innocuous stimulation applied during anesthesia, ON-U and OFF-U cells were excited and inhibited, respectively, by innocuous somatosensory stimulation in the unanesthetized rat. The spontaneous activity of >90% of the RM neurons recorded in the unanesthetized rat was influenced by behavioral state. OFF-U cells discharged sporadically during waking but were continuously active during slow wave sleep. By contrast, ON-U and NEUTRAL-U cells discharged in bursts during waking and either ceased to discharge entirely or discharged at a low rate during slow wave sleep. We suggest that OFF cell discharge functions to suppress pain-evoked reactions during sleep, whereas ON cell discharge facilitates pain-evoked responses during waking. (+info)Effect of psychotropic drugs on caudate spindle in cats. (2/10381)
To ascertain whether neuroleptics act on the caudate nucleus itself, the effects of these compounds as well as other centrally acting drugs were examined in relation to caudate spindle and EEG arousal responses (sciatic nerve stimulation) in gallamine-immobilized cats. Haloperidol and chlorpromazine enhanced the caudate spindle at a dose which had no effect on the EEG arousal response. On the other hand, clozapine and a higher dose of chlorpromazine enhanced the caudate spindle, but depressed the arousal response. High frequency stimulation of the sciatic nerve suppressed the caudate spindle. Pentobarbital, biperiden and diazepam, while depressing the arousal response, caused an enhancement of the caudate spindle. Imipramine at a low dose had no effect on either response, whereas at a high dose this drug enhanced the caudate spindle with concomitant depression of the arousal response. From these results, it may be concluded that the enhancing action on the caudate spindle induced by haloperidol and a low dose of chlorpromazine is due to an increase in susceptibility of the caudate nucleus itself. In addition, it is suggested that depression of the activating system is involved in an appearance of the caudate spindle. (+info)Arousal from sleep shortens sympathetic burst latency in humans. (3/10381)
1. Bursts of sympathetic activity in muscle nerves are phase-locked to the cardiac cycle by the sinoaortic baroreflexes. Acoustic arousal from non-rapid eye movement (NREM) sleep reduces the normally invariant interval between the R-wave of the electrocardiogram (ECG) and the peak of the corresponding sympathetic burst; however, the effects of other forms of sleep disruption (i.e. spontaneous arousals and apnoea-induced arousals) on this temporal relationship are unknown. 2. We simultaneously recorded muscle sympathetic nerve activity in the peroneal nerve (intraneural electrodes) and the ECG (surface electrodes) in seven healthy humans and three patients with sleep apnoea syndrome during NREM sleep. 3. In seven subjects, burst latencies were shortened subsequent to spontaneous K complexes (1.297 +/- 0.024 s, mean +/- s. e.m.) and spontaneous arousals (1.268 +/- 0.044 s) compared with latencies during periods of stable NREM sleep (1.369 +/- 0.023 s). In six subjects who demonstrated spontaneous apnoeas during sleep, apnoea per se did not alter burst latency relative to sleep with stable electroencephalogram (EEG) and breathing (1.313 +/- 0.038 vs. 1.342 +/- 0.026 s); however, following apnoea-induced EEG perturbations, burst latencies were reduced (1.214 +/- 0.034 s). 4. Arousal-induced reduction in sympathetic burst latency may reflect a temporary diminution of baroreflex buffering of sympathetic outflow. If so, the magnitude of arterial pressure perturbations during sleep (e.g. those caused by sleep disordered breathing and periodic leg movements) may be augmented by arousal. (+info)Overexpression of a Shaker-type potassium channel in mammalian central nervous system dysregulates native potassium channel gene expression. (4/10381)
The nervous system maintains a delicate balance between excitation and inhibition, partly through the complex interplay between voltage-gated sodium and potassium ion channels. Because K+ channel blockade or gene deletion causes hyperexcitability, it is generally assumed that increases in K+ channel gene expression should reduce neuronal network excitability. We have tested this hypothesis by creating a transgenic mouse that expresses a Shaker-type K+ channel gene. Paradoxically, we find that addition of the extra K+ channel gene results in a hyperexcitable rather than a hypoexcitable phenotype. The presence of the transgene leads to a complex deregulation of endogenous Shaker genes in the adult central nervous system as well as an increase in network excitability that includes spontaneous cortical spike and wave discharges and a lower threshold for epileptiform bursting in isolated hippocampal slices. These data suggest that an increase in K+ channel gene dosage leads to dysregulation of normal K+ channel gene expression, and it may underlie a mechanism contributing to the pathogenesis of human aneuploidies such as Down syndrome. (+info)Intrapreoptic microinjection of GHRH or its antagonist alters sleep in rats. (5/10381)
Previous reports indicate that growth hormone-releasing hormone (GHRH) is involved in sleep regulation. The site of action mediating the nonrapid eye movement sleep (NREMS)-promoting effects of GHRH is not known, but it is independent from the pituitary. GHRH (0.001, 0. 01, and 0.1 nmol/kg) or a competitive antagonist of GHRH (0.003, 0.3, and 14 nmol/kg) was microinjected into the preoptic area, and the sleep-wake activity was recorded for 23 hr after injection in rats. GHRH elicited dose-dependent increases in the duration and in the intensity of NREMS compared with that in control records after intrapreoptic injection of physiological saline. The antagonist decreased the duration and intensity of NREMS and prolonged sleep latency. Consistent alterations in rapid eye movement sleep (REMS) and in brain temperature were not found. The GHRH antagonist also attenuated the enhancements in NREMS elicited by 3 hr of sleep deprivation. Histological verification of the injection sites showed that the majority of the effective injections were in the preoptic area and the diagonal band of Broca. The results indicate that the preoptic area mediates the sleep-promoting activity of GHRH. (+info)EEG surveillance as a means of extending operability in high risk carotid endarterectomy. (6/10381)
Some patients who have transient ischemic attacks are denied operation because severe occlusive lesions in other extra-cranial arteries may be inappropriately interpreted as constituting an unacceptable surgical risk, or because the lesion is so distal as to make its removal hazardous. Failure of endarterectomy is usually due to incomplete removal of the lesion or to thrombosis upon the frayed intima. Such lesions require excellent visualization and meticulous surgical technique -- not always possible with a shunt. Among 130 consecutive carotid endarterectomies performed under general anesthesia, EEG changes consistent with cerebral ischemia appeared in only nine (7%). These patients required a shunt. In 11 patients normal EEG tracings were obtained during endarterectomy despite contralateral carotid occlusion. None of these patients had a neurological deficit. Continuous EEG monitoring is a reliable method of detecting changes in cerebral perfusion, permits a more meticulous endarterectomy in high-lying lesions without a shunt, and extends operability in high risk patients. Angiographical findings may be an unreliable predictor concerning risk of endarterectomy. (+info)Intensive care management of stroke patients. (7/10381)
Two hundred eighty patients were admitted to an intensive care stroke unit over a one-year period. Subsequent investigation indicated that only 199 of these patients actually had cerebral ischemic or hemorrhagic lesions, 10 had other cerebrovascular lesions, and the remaining 71 patients had unrelated diseases, predominantly seizures. Detailed analysis of 103 stroke patients revealed an overall incidence of 59% hypertension, and 72% had hypertensive, ischemic or valvular heart disease. Fifty percent of the patients had various cardiac arrhythmias, some of which were responsible for the acute cerebrovascular lesion. Fourteen patients died during the acute phase, 11 from apparently irreversible cerebral selling, mainly due to cerebral hemorrhage. Secondary complications such as pneumonia, pulmonary embolism, pressure sores and urinary infection were almost nonexistent, but beneficial effects on the primary cerebral lesions were more difficult to demonstrate. (+info)Subcortical arteriosclerotic encephalopathy (Binswanger's disease). A vascular etiology of dementia. (8/10381)
A 51-yearold man with moderate intermittent hypertension had a rapidly progressive, profound dementia in the absence of significant localizing neurological signs. Postmortem examination disclosed the vascular alterations and diffuse white matter degeneration which characterize subcortical arteriosclerotic encephalopathy (SAE) or Binswanger's disease. The case underscores the need to consider vascular disease as an etiology of dementia -- even in the absence of focal neurological deficit. (+info)
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Publications | Max Planck Institute
Publications | Max Planck Institute
ELECTROENCEPHALOGRAPHY (EEG)
Tape-recorded EEG and the cerebral function monitor: amplitude-integrated, time-compressed EEG
Monitoring - Continuous EEG
Global EEG Electrodes Market 2019-2023 - GII
A Quantitative Electroencephalography Study on Cochlear Implant-Induced Cortical Changes in Single-Sided Deafness with Tinnitus
Alteration of frontal EEG asymmetry during tryptophan depletion predicts future depression<...
ORBi: Browsing ORBi
Continuous EEG Monitoring: Principles and Practice 1st ed. 2017 Edition PDF
L-theanine, Health Benefits and Cognitive Function - Blog - iHerb
Sleep spindles in human prefrontal cortex: An electrocorticographic study<...
Corrigendum to Neuroimaging and electroencephalographic changes after vagus nerve stimulation in a boy with medically...
Ripples on spikes show increased phase-amplitude coupling in mesial temporal lobe epilepsy seizure-onset zones.
Event-related potentials in electroencephalography characteristics and by Yonghong Huang
MODIFICAZIONI EEG IN CORSO DI TRATTAMENTO CON VALPROATO SODICO IN PAZIENTI CON EPILESSIA GENERALIZZATA IDIOPATICA<...
Basal Forebrain Histaminergic Transmission Modulates Electroencephalographic Activity and Emergence from Isoflurane Anesthesia ...
Temporo-insular enhancement of EEG low and high frequencies in patients with chronic tinnitus. QEEG study of chronic tinnitus...
Interference with processed electroencephalographic recording by facial nerve stimulation. - literature database - CNGBdb
Autoregressive Modeling Based Empirical Mode Decomposition (EMD) for Epileptic Seizures Detection Using EEG Signals | IIETA
Electroclinical Features of Generalized Paroxysmal Fast Activity in Ty by Lalit R. Bansal, Lines Vargas Collado et al.
CDKL5 mutations in boys with severe encephalopathy and early-onset intractable epilepsy | Neurology
Electroencephalography Equipment Market Research Study including Growth Factors, Types and Application by regions from 2016 to...
Effects of organization and disorganization on pleasantness, calmness, and the frontal negativity in the event-related potential
A comparative study of application of different non-conventional filters on electroencephalogram.
EEGLAB - Wikipedia
Cardiograph, doppler, encephalograph, miograph, rheograph, Aberdeen - Aberdeen - Medical equipment, supplies, Aberdeen - 1676239
Cardiograph, doppler, encephalograph, miograph, rheograph, Carlow - Carlow - Medical equipment, supplies, Carlow - 1676125
Cardiograph, doppler, encephalograph, miograph, rheograph, Wexford - Wexford - Medical equipment, supplies, Wexford - 1676161
Decoding kinetic features of hand motor preparation from single-trial EEG using convolutional neural networks
- Aalborg...
EEG ABNORMALITIES ARE NOT ASSOCIATED WITH SYMPTOM SEVERITY IN CHILDHOOD AUTISM - Studia Psychologica - Tom 46, Numer 3 (2004) -...
electroencephalography facts, information, pictures | Encyclopedia.com articles about electroencephalography
Europe Electroencephalography Amplifiers Market Report 2017
Granger Causality Analysis of Steady-State Electroencephalographic Signals during Propofol-Induced Anaesthesia
Probing interval timing with scalp-recorded electroencephalography (EEG)
Advantages of Digital Electroencephalography in Clinical Veterinary Medicine-1 - NeuroVet - VIN
Integrating cross-frequency and within band functional networks in resting-state MEG: A multi-layer network approach. -...
Benign Childhood Epilepsy with Centrotemporal Spikes: To Treat or Not to Treat
Most recent papers with the keyword Rapid eye movement sleep | Read by QxMD
EEG Electrodes
Delta brain waves er
Continuous EEG Monitoring for Early Detection of Delayed Cerebral Ischemia in Subarachnoid Hemorrhage: A Pilot Study
Diagnosing Epilepsy
A.E.Brain: How Close Is a Workable Brain-Computer Interface?
Age-related changes in orienting attention in time. - Department of Psychiatry
Heart beats brain: the problem of detecting alpha waves by neuronal current imaging in joint EEG-MRI experiments - Zurich Open...
The Oxford Handbook of Event-Related Potential Components - Hardcover - Steven J. Luck; Emily S. Kappenman - Oxford University...
Consequences of EEG electrode position error on ultimate beamformer source reconstruction performance
Natural Sex Pills For Men Sex Power Increase Medicine In Hindi & PD Warrior
Electroencephalography and subjective ratings of sleep deprivation
Sleep sex
Electroencephalography[edit]. Electroencephalograms, or EEG, are tests used to depict electrical activity and waves produced by ... Through the use of electroencephalography, health professionals are able to determine if the sexual behaviors are occurring ...
Electroencephalography
Look up electroencephalography, electroencephalogram, electroencephalograph, or brainwave in Wiktionary, the free dictionary. ... Electroencephalography (EEG) is an electrophysiological monitoring method to record electrical activity on the scalp that has ... Niedermeyer E.; da Silva F.L. (2004). Electroencephalography: Basic Principles, Clinical Applications, and Related Fields. ... I. Evoked responses after thalamic and epicortical stimulation". Electroencephalography and Clinical Neurophysiology. 20 (1): 1 ...
Self-serving bias
Electroencephalography (EEG)[edit]. In a study employing the EEG method of examining brain activation, participants were given ... Neural correlates of the self-serving bias have been investigated by electroencephalography (EEG),[12] as well as functional ...
Cognitive science
Electroencephalography. EEG measures the electrical fields generated by large populations of neurons in the cortex by placing a ...
Neurofeedback
Omejc N, Rojc B, Battaglini P, Marusic U. Review of the therapeutic neurofeedback method using electroencephalography: EEG ... Electroencephalography and Clinical Neurophysiology, 13, 452-456. Kasamatsu, A., & Hirai, T. (1966). An electroencephalographic ... is a type of biofeedback that uses real-time displays of brain activity-most commonly electroencephalography (EEG)-in an ... Electroencephalography and Clinical Neurophysiology. 33 (1): 89-95. doi:10.1016/0013-4694(72)90028-4. PMID 4113278. Sterman MB ...
Electrophysiological techniques for clinical diagnosis
Electroencephalography is the measurement of brain activity through the surface of the scalp. Electroencephalography data can ... Clinical Electroencephalography. 25 (4): VI-XXII. doi:10.1177/155005949402500403. PMID 7813090. S2CID 29808694. Archived from ... analytical procedures and certain derived summary indices of these analyses are called quantitative electroencephalography ( ...
Ear-EEG
Casson, Alexander (10 May 2010). "Wearable electroencephalography. What is it, why is it needed, and what does it entail?" (PDF ... Moss, James (2017). "The Efficacy of In-Ear Electroencephalography (EEG) to Monitor Sleep Latency and the Impact of Sleep ... resulting in both a much greater invisibility and wearer mobility compared to full scalp electroencephalography (EEG), but also ...
Panayiotopoulos syndrome
Electroencephalography (EEG). EEG is the only investigation with abnormal results, usually showing multiple spikes in various ...
Professional practice of behavior analysis
He also studied the electroencephalography (EEG) correlates of meditative states. Operant conditioning of EEG has had ... Clinical Electroencephalography. 31 (1): 45-55. doi:10.1177/155005940003100111. PMID 10638352. Roman, H.R. & Boyce, T.E. (2001 ...
Frontal lobe disorder
Clinical Electroencephalography. 32 (1): 20-3. doi:10.1177/155005940103200106. PMID 11202137. S2CID 35417045. Leadership, ...
Hypsarrhythmia
Gibbs, FA (1952). Atlas of electroencephalography. Cambridge, Mass.: Addison-Wesley. Hrachovy, RA; Frost JD (2003). "Infantile ...
Fetal EEG
Fetal electroencephalography, also known as prenatal EEG includes any recording of electrical fluctuations arising from the ... Borkowski, Winslow J.; Bernstine, Richard L. (1955-05-01). "Electroencephalography of the Fetus". Neurology. 5 (5): 362-5. doi: ... Bernstine, Richard L.; Borkowski, Winslow J.; Price, A.H. (1955). "Prenatal fetal electroencephalography". American Journal of ... Bernstine, Richard Lee (1961). Fetal electrocardiography and electroencephalography. Thomas. pp. 63-69. Urigüen, Jose Antonio; ...
Hippocampus
ElectroencephalographyEdit. Image 7: Examples of rat hippocampal EEG and CA1 neural activity in the theta (awake/behaving) and ...
Ivan Tarkhanov (physiologist)
Electroencephalography and Clinical Neurophysiology. 18 (7): 691-708. doi:10.1016/0013-4694(65)90113-6. PMID 14297542. ...
Brain-computer interface
Taheri, B; Knight, R; Smith, R (1994). "A dry electrode for EEG recording☆". Electroencephalography and Clinical ... In some cases, biofeedback does not monitor electroencephalography (EEG), but instead bodily parameters such as ... "Use of Electroencephalography Brain-Computer Interface Systems as a Rehabilitative Approach for Upper Limb Function After a ... starts with Hans Berger's discovery of the electrical activity of the human brain and the development of electroencephalography ...
Benzodiazepine overdose
Preliminary observations". Electroencephalography and Clinical Neurophysiology. 70 (6): 482-9. doi:10.1016/0013-4694(88)90146-0 ...
F wave
Electroencephalography and Clinical Neurophysiology. 101 (5): 365-374. ISSN 0013-4694. PMID 8913188. Sathya, G. R.; ...
Sleep deprivation
Electroencephalography and Clinical Neurophysiology. 36 (1): 1-18. doi:10.1016/0013-4694(74)90132-1. PMID 4128428. Archived ...
Jan Trąbka
Fifth International Congress of Electroencephalography and Clinical Neurophysiology. Rome-Italy, 7-13 Sept. 1961. Exc. Med. Int ... Electroencephalography and Clinical Neurophysiology. 14 (4): 453-464. doi:10.1016/0013-4694(62)90051-2. PMID 13922227. Barlow, ...
Brainwave entrainment
Electroencephalography and Clinical Neurophysiology, Vol. 13, 1961, pp 449-451. Zakharova, N. N., and Avdeev, V. M., " ... Beat (acoustics) Electroencephalography Neural oscillation Fredricks, R. (2008). Healing and Wholeness: Complementary and ... da Silva FL (1991). "Neural mechanisms underlying brain waves: from neural membranes to networks". Electroencephalography and ... Niedermeyer E. and da Silva F.L., Electroencephalography: Basic Principles, Clinical Applications, and Related Fields. ...
N100
In neuroscience, the N100 or N1 is a large, negative-going evoked potential measured by electroencephalography (its equivalent ... Electroencephalography and Clinical Neurophysiology. 52 (1): 9-17. doi:10.1016/0013-4694(81)90183-8. PMID 6166459. Budd, T. W ... Electroencephalography and Clinical Neurophysiology. 69 (2): 160-170. doi:10.1016/0013-4694(88)90211-8. PMID 2446835. Nash, A. ... Electroencephalography and Clinical Neurophysiology. 38 (5): 449-461. doi:10.1016/0013-4694(75)90187-x. PMID 50170. Vaughan Jr ...
Germline development
Electroencephalography and Clinical Neurophysiology. 66 (6): 529-38. doi:10.1242/dev.098269. PMC 3896947. PMID 2438119. ...
William C. Dement
Electroencephalography and Clinical Neurophysiology. 9 (4): 673-690. doi:10.1016/0013-4694(57)90088-3. PMID 13480240. Dement, W ...
Benjamin Libet
Electroencephalography and Clinical Neurophysiology. 54 (3): 322-325. doi:10.1016/0013-4694(82)90181-x. PMID 6179759. "Freedom ...
José Manuel Rodríguez Delgado
Electroencephalography and Clinical Neurophysiology. 8 (3): 371-384. doi:10.1016/0013-4694(56)90003-7. Delgado, José M.R. (1964 ...
John Rothwell (physiologist)
Report of an IFCN committee". Electroencephalography and Clinical Neurophysiology. 91 (2): 79-92. doi:10.1016/0013-4694(94) ...
Neural oscillation
Coenen A, Fine E, Zayachkivska O (2014). "Adolf Beck: a forgotten pioneer in electroencephalography". Journal of the History of ... Phase resetting also permits the study of evoked activity, a term used in electroencephalography and magnetoencephalography for ... Moruzzi G, Magoun HW (November 1949). "Brain stem reticular formation and activation of the EEG". Electroencephalography and ... The term ongoing brain activity is used in electroencephalography and magnetoencephalography for those signal components that ...
P3a
Yamaguchi, S.; Knight, R. T. (1991). "P300 generation by novel somatosensory stimuli". Electroencephalography and Clinical ... Electroencephalography and Clinical Neurophysiology. 38 (4): 387-401. CiteSeerX 10.1.1.326.332. doi:10.1016/0013-4694(75)90263- ...
Positive neuroscience
Human electroencephalography, first practiced in 1920, was applied to the study of creativity in the early 1970s. As in vivo ... Electroencephalography and Clinical Neurophysiology. 106 (2): 173-6. doi:10.1016/S0013-4694(97)00121-1. PMID 9741779.CS1 maint ...
Hjorth parameters
They are commonly used in the analysis of electroencephalography signals for feature extraction. The parameters are normalised ... Hjorth, Bo; Elema-Schönander, AB (1970). "EEG analysis based on time domain properties". Electroencephalography and Clinical ...
Electroencephalography - Wikipedia
Look up electroencephalography, electroencephalogram, electroencephalograph, or brainwave in Wiktionary, the free dictionary. ... Electroencephalography (EEG) is an electrophysiological monitoring method to record electrical activity on the scalp that has ... Niedermeyer E.; da Silva F.L. (2004). Electroencephalography: Basic Principles, Clinical Applications, and Related Fields. ... I. Evoked responses after thalamic and epicortical stimulation". Electroencephalography and Clinical Neurophysiology. 20 (1): 1 ...
electroencephalography: Brainwave Patterns | Infoplease
Clinical Electroencephalography | Oriano Mecarelli | Springer
Clinical Electroencephalography. Editors. * Oriano Mecarelli Copyright. 2019. Publisher. Springer International Publishing. ... His main area of interest is electroencephalography and clinical epileptology. He is President of the Italian League against ... This book describes the developments and improvements in electroencephalography (EEG). In recent years, digital technology has ...
Electroencephalography - Wikipedia
Electroencephalography (EEG) is an electrophysiological monitoring method to record electrical activity on the scalp that has ... The use of computer signal processing of the EEG-so-called quantitative electroencephalography-is somewhat controversial when ... Therefore, current usage in electroencephalography refers to the phenomenon as an eyelid fluttering artifact, rather than a ... Computational processing of the EEG is often named quantitative electroencephalography (qEEG). Most of the cerebral signal ...
Pharmaco-electroencephalography - Wikipedia
Stereo EEG (Electroencephalography)
electroencephalography - Science-Based Medicine
Electroencephalography - EMBS
electroencephalography Archives - Bulletin of the Atomic Scientists
Electroencephalography dictionary definition | electroencephalography defined
... plural electroencephalographies) 1. (neurology) The measurement and recording of electrical activity in the brain for ... plural electroencephalographies). *(neurology) The measurement and recording of electrical activity in the brain for diagnostic ... "electroencephalography." YourDictionary, n.d. Web. 15 January 2019. ,https://www.yourdictionary.com/electroencephalography,. ... electroencephalography. (n.d.). Retrieved January 15th, 2019, from https://www.yourdictionary.com/electroencephalography ...
Jonathan Harris - Sacramento, CA - Electroencephalography (EEG) | Healthgrades.com
Looking for an Electroencephalography (EEG) Technician? We found others matching your search, to help you compare.. ... Looking for an Electroencephalography (EEG) Technician? We found others matching your search, to help you compare.. ... Jonathan Harris is an electroencephalography (eeg) provider who practices in Sacramento, CA.. ...
Electroencephalography Data Collection System | Ohio University
Electroencephalography - Simple English Wikipedia, the free encyclopedia
An electroencephalogram is a recorded electroencephalography. Both are abbreviated EEG. Electroencephalography is used to ... Electroencephalography is a way to record certain patterns of brain activity, on the skin of the head. Nerve cells use ... Retrieved from "https://simple.wikipedia.org/w/index.php?title=Electroencephalography&oldid=5562005" ...
Role of Electroencephalography in Presurgical Evaluation of Temporal Lobe Epilepsy
Electroencephalography (EEG) labs
Electroencephalography | Technology Trends
Electroencephalography. Electroencephalography (EEG) is the recording of electrical activity along the scalp. EEG measures ... Other articles related to electroencephalography:. Human Brain - Sources of Information - Electroencephalography. ... the ... Read more about Electroencephalography: Source of EEG Activity, Clinical Use, Research Use, Method, Normal Activity, Abnormal ... summed electrical activity of the cortex, using a methodology known as electroencephalography (EEG) ... ...
Electroencephalography (EEG) Systems - Global Market Outlook (2016-2022)
According to Stratistics MRC, the Global Electroencephalography (EEG) Systems market is estimated at $700.45 million in 2016 ... Electroencephalography (EEG) Systems - Global Market Outlook (2016-2022). Thursday, April 27, 2017 Research News ... North America dominated the Electroencephalography systems market which can be attributed to increasing occurrence of various ... To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/electroencephalography-eeg-systems ...
Electroencephalography (EEG) Scan Definition & Test Results
Electroencephalography Definition A technique for studying the electrical currents within the brain. Electrodes are attached to ... Electroencephalography: Basic Principles, Clinical Applications and Related Fields. Lippincott Williams & Wilkins, 1999.. ... Atlas and Classification of Electroencephalography. WB Saunders, 1999.. Niedermeyer, E. and F. L. Da Silva. ...
Sensitivity of Amplitude-Integrated Electroencephalography for Neonatal Seizure Detection | American Academy of Pediatrics
Sensitivity of Amplitude-Integrated Electroencephalography for Neonatal Seizure Detection. Renée A. Shellhaas, Adina I. Soaita ... Sensitivity of Amplitude-Integrated Electroencephalography for Neonatal Seizure Detection. Renée A. Shellhaas, Adina I. Soaita ... Amplitude-Integrated Electroencephalography in the NICU: Frequent Artifacts in Premature Infants May Limit Its Utility as a ... Sensitivity of Amplitude-Integrated Electroencephalography for Neonatal Seizure Detection Message Subject (Your Name) has sent ...
Dr. Marat Avshalumov, PHD - Rockville Centre, NY - Electroencephalography (EEG) | Healthgrades.com
Looking for an Electroencephalography (EEG) Technician? We found others matching your search, to help you compare.. ... Looking for an Electroencephalography (EEG) Technician? We found others matching your search, to help you compare.. ... Marat Avshalumov, PHD is an electroencephalography (eeg) provider who practices in Rockville Centre, NY.. ...
electroencephalography | EUdict | English...
... electroencephalography in English->French dictionary. Search nearly 14 million words and phrases in more than 468 language ... Results for: electroencephalography. English. French. electroencephalography. électroencéphalographie (enregistrement des ... electroencephalography BDP u realnom iskazu அகணி, அகடு 不一定 [bu-yi-ding] dragon (esp. a Chinese dragon); naga (semidivine human- ... electroencephalography. Electrolock. electroluminescent display. electrolyse. Electrolysis. Electrolyte. electrolytic. ...
L03 Electroencephalography I | BIOPAC
BSL EEG lesson I is an introduction to electroencephalographic recording techniques. The lesson demonstrates how the brains electrical activity varies dependent upon the task being performed. Students record EEG from the occipital lobe while performing a number of different tasks. The software will automatically filter the data to display alpha, beta, delta, and theta wave components. Students will measure and compare the EEG activity associated with various tasks ...
EEG: Electroencephalography
Wired , EEG: Electroencephalography. MP36R with AcqKnowledge plus electrode lead adapter, 8 mm shielded TP electrode and 8 mm ... Animal , EEG: Electroencephalography. MP36R with AcqKnowledge plus electrode lead adapter and three 12 mm TP unipolar needle ... Animal , EEG: Electroencephalography. EPOCH implantable EEG system with MP160 System for long-term wireless EEG/neural signal ... Full Line of Electroencephalography Acquistion & Analysis Solutions for Human & Animal Research. Fully automated routines ...
The Fundamental and Applied Electroencephalography Laboratory - University of Plymouth
EEG Laboratory Lead, Dr Giorgio Ganis, Associate Professor, has been using electroencephalography (EEG), brain stimulation (TMS ... By using a technique called electroencephalography (EEG), which measures electrical activity in the brain with high temporal ... The Fundamental and Applied Electroencephalography lab in the BRIC facility will include stationary and mobile EEG systems. ... The Fundamental and Applied Electroencephalography Laboratory. A specialist Brain Research & Imaging Centre (BRIC) laboratory ...
What is the role of electroencephalography in the treatment of central pontine myelinolysis (CPM)?
Electroencephalography in central pontine myelinolysis may demonstrate diffuse bihemispheric slowing. Brainstem-evoked ... What is the role of electroencephalography in the treatment of central pontine myelinolysis (CPM)?. Updated: Oct 09, 2017 ... encoded search term (What is the role of electroencephalography in the treatment of central pontine myelinolysis (CPM)?) and ... Electroencephalography in central pontine myelinolysis may demonstrate diffuse bihemispheric slowing. Brainstem-evoked ...
Dissociating Perceptual Quality Dimensions of Transmitted Speech Using Electroencephalography - IEEE Conference Publication
Probing interval timing with scalp-recorded electroencephalography (EEG)
This chapter summarizes the investigation of timing and time perception using scalp-recorded electroencephalography (EE … ... Probing interval timing with scalp-recorded electroencephalography (EEG) Adv Exp Med Biol. 2014;829:187-207. doi: 10.1007/978-1 ... This chapter summarizes the investigation of timing and time perception using scalp-recorded electroencephalography (EEG), a ...
Medical Xpress - electroencephalography
Electroencephalography. Electroencephalography (EEG) is the recording of electrical activity along the scalp produced by the ... PhysOrg.com) -- A portable, plugless, brain-to-computer interface using electroencephalography (EEG) electrodes strapped to the ... Such is the case in a new study of electroencephalography (EEG) readings ... ...
Electroencephalography in ellipsoidal geometry with fourth-order harmonics | IEEE Conference Publication | IEEE Xplore
Frontiers | Assessing Feedback Response With a Wearable Electroencephalography System | Human Neuroscience
Most research studies investigate these ERP components using clinical or research-grade electroencephalography (EEG) systems. ... Most research studies investigate these ERP components using clinical or research-grade electroencephalography (EEG) systems. ... Assessing Feedback Response With a Wearable Electroencephalography System. Jenny M. Qiu1*, Michael A. Casey2 and Solomon G. ... Citation: Qiu JM, Casey MA and Diamond SG (2019) Assessing Feedback Response With a Wearable Electroencephalography System. ...
EpilepsyNear-infrared speAmplitude-integratedGlobal Electroencephalography Equipment marketClinicalQuantitativeRole of ElectroencephalographyNeuroscienceStereo electroencephalographyNeonatal ElectroencephalographyInpatient electroencephalographyNiedermeyer's ElectroencephalographyEpilepticBrainSeizureScalpSignalsNorth AmericaContinuousFunctional2016Electroencephalogram2020ElectrodesIctalTechniqueNeurophysiologicalCerebralClassificationStudyInfantsMedical illustrationMarketCortexDiagnostic techniquesResults
Epilepsy7
- Electroencephalography is used to detect epilepsy , coma , sleep and brain death . (wikipedia.org)
- Electroencephalography (EEG) is used as a diagnostic tool for a spectrum of conditions including epilepsy, seizures, cerebrovascular diseases, head injuries, psychiatric diseases, and encephalopathies. (jaoa.org)
- Included in this retrospective study were a consecutive series of 50 patients who underwent magnetoencephalography and stereo-electroencephalography at the Cleveland Clinic Epilepsy Center. (ovid.com)
- Which electroencephalography (EEG) for epilepsy? (bmj.com)
- Electroencephalography (EEG) is an essential investigative tool for use in young people with epilepsy. (bmj.com)
- To observe and evaluate the efficacy of valproate on electroencephalography and obesity in children with epilepsy. (alliedacademies.org)
- It's suggested that valproate improve the electroencephalography and clinical systems of children with epilepsy, but valproate induce the obesity which could be relative with the serum values of leptin, adiponectin, leptin/adiponectin. (alliedacademies.org)
Near-infrared spe4
- To this end, we have used functional diffuse correlation spectroscopy (fDCS) and time-resolved functional near-infrared spectroscopy (TR-fNIRS) together with electroencephalography (EEG) during and after stimulation of the frontal cortex. (spiedigitallibrary.org)
- Measuring the exact placement of probes (e.g., electrodes and optodes) on a participant's head is a notoriously difficult step in acquiring neuroimaging data from methods that rely on scalp recordings (e.g., electroencephalography and functional near-infrared spectroscopy) and is particularly difficult for any clinical or developmental population. (spiedigitallibrary.org)
- Functional near-infrared spectroscopy (fNIRS) and electroencephalography (EEG) require knowledge of the positioning of probes on subjects' scalps. (spiedigitallibrary.org)
- Few data have been published on the combined use of amplitude-integrated electroencephalography (aEEG) and near-infrared spectroscopy (NIRS) for outcome prediction in neonates cooled for hypoxic-ischemic encephalopathy (HIE). (figshare.com)
Amplitude-integrated7
- The Impact of Amplitude-Integrated Electroencephalography on NICU Practice. (biomedsearch.com)
- Objective: To examine how the introduction of amplitude-integrated electroencephalography (aEEG) to our neonatal intensive care unit (NICU) influenced clinical practice. (biomedsearch.com)
- This study aimed to correlate amplitude-integrated electroencephalography findings with early outcomes, measured by mortality and neuroimaging findings, in a prospective cohort of infants at high risk for brain injury in this center in Brazil. (scielo.br)
- This blinded prospective cohort study evaluated 23 preterm infants below 31 weeks of gestational age and 17 infants diagnosed with hypoxic-ischemic encephalopathy secondary to perinatal asphyxia, with gestational age greater than 36 weeks, monitored with amplitude-integrated electroencephalography in a public tertiary center from February 2014 to January 2015. (scielo.br)
- In patients with hypoxic-ischemic encephalopathy, seizure patterns on amplitude-integrated electroencephalography traces were associated with mortality or brain lesion in cranial magnetic resonance imaging (p = 0.005). (scielo.br)
- This study supports previous results and demonstrates the utility of amplitude-integrated electroencephalography for monitoring brain function and predicting early outcome in the studied groups of infants at high risk for brain injury. (scielo.br)
- Effects of morphine and midazolam on sleep-wake cycling in amplitude-integrated electroencephalography in post-surgical neonates = 32 weeks of gestational age. (edu.au)
Global Electroencephalography Equipment market7
- What are the key factors driving the global Electroencephalography Equipment market? (beforeitsnews.com)
- What are the Electroencephalography Equipment market opportunities and threats faced by the vendors in the global Electroencephalography Equipment market? (beforeitsnews.com)
- Global Electroencephalography Equipment Market 2015-2019, has been prepared based on an in-depth market analysis with inputs from industry experts. (powershow.com)
- it also covers the landscape of the global electroencephalography equipment market and its growth prospects in the coming years. (powershow.com)
- Research analysts forecast the global electroencephalography equipment market to grow at a CAGR of 7.34 during 2014-2019. (powershow.com)
- Covered in this report The electroencephalography equipment report covers the current scenario and the growth prospects of the global electroencephalography equipment market for 2015-2019. (powershow.com)
- The report covers APAC, EMEA, and the America it also covers the landscape of the global electroencephalography equipment market and its growth prospects in the coming years. (powershow.com)
Clinical7
- In 1935, Gibbs, Davis and Lennox described inter ictal spike waves and the three cycles/s pattern of clinical absence seizures , which began the field of clinical electroencephalography. (wikipedia.org)
- His main area of interest is electroencephalography and clinical epileptology. (springer.com)
- In 1935, Gibbs, Davis and Lennox described interictal spike waves and the three cycles/s pattern of clinical absence seizures, which began the field of clinical electroencephalography. (wikipedia.org)
- Most research studies investigate these ERP components using clinical or research-grade electroencephalography (EEG) systems. (frontiersin.org)
- This comprehensive atlas presents the clinical practice of neonatal electroencephalography (EEG) through text, references, and detailed figures demonstrating normal and abnormal features of the neonatal EEG from the most premature infant to one month post-term. (springerpub.com)
- Early Detection of Preterm Intraventricular Hemorrhage From Clinical Electroencephalography. (lu.se)
- Niedermeyer's Electroencephalography: Basic Principles, Clinical Applications, and Related Fields, Seventh Edition keeps the clinical neurophysiologist on the forefront of medical advancements. (oup.com)
Quantitative5
- This preliminary report is an account of 21 consecutive patients who had tinnitus of the severe disabling type and were examined with quantitative electroencephalography (QEEG). (tinnitusjournal.com)
- Conventional and quantitative electroencephalography in psychiatry. (springer.com)
- Purpose: To determine if continuous quantitative electroencephalography percent alpha variability(EEGPAV)can discriminate areas of critically reduced cerebral blood flow (CBF). (ahajournals.org)
- Quantitative electroencephalography (qEEG) is a good candidate and the statistical pattern recognition (SPR) method has recently provided promising results. (aldringoghelse.no)
- We developed a multifactorial model combining quantitative electroencephalography (qEEG) measurements and clinically relevant parameters as proof of concept for outcome prediction of patients with moderate to severe TBI. (nih.gov)
Role of Electroencephalography1
- What is the role of electroencephalography in the treatment of central pontine myelinolysis (CPM)? (medscape.com)
Neuroscience1
- Terry Daugherty, Ernest Hoffman, Kathleen Kennedy, and Megan Nolan (2014) ,"Consumer Neuroscience: Testing Effectual Advertising Using Dense-Array Electroencephalography", in NA - Advances in Consumer Research Volume 42, eds. (acrwebsite.org)
Stereo electroencephalography9
- Stereo EEG, also called SEEG, stands for stereo electroencephalography. (seattlechildrens.org)
- Magnetoencephalography and stereo-electroencephalography are often necessary in the course of the non-invasive and invasive presurgical evaluation of challenging patients with medically intractable focal epilepsies. (ovid.com)
- In this study, we aim to examine the significance of magnetoencephalography dipole clusters and their relationship to stereo-electroencephalography findings, area of surgical resection, and seizure outcome. (ovid.com)
- Magnetoencephalography dipole clusters, stereo-electroencephalography findings and area of resection were reconstructed and examined in the same space using the patient's own magnetic resonance imaging scan. (ovid.com)
- Furthermore, patients had a significantly higher chance of being seizure-free when stereo-electroencephalography completely sampled the area identified by magnetoencephalography as compared to those with incomplete or no sampling of magnetoencephalography results (P = 0.012). (ovid.com)
- Partial concordance between magnetoencephalography and interictal or ictal stereo-electroencephalography was associated with a much lower chance of seizure freedom as compared to the concordant group (P = 0.0075). (ovid.com)
- Our data demonstrate that stereo-electroencephalography exploration and subsequent resection are more likely to succeed, when guided by positive magnetoencephalography findings. (ovid.com)
- As a corollary, magnetoencephalography clusters should not be ignored when planning the stereo-electroencephalography strategy. (ovid.com)
- The concordance pattern between magnetoencephalography and stereo-electroencephalography is a strong argument in favour of incorporating localization with non-invasive tools into the process of presurgical evaluation before actual placement of electrodes. (ovid.com)
Neonatal Electroencephalography2
- Atlas of Neonatal Electroencephalography is a singular atlas, unrivaled in the breadth of its coverage and level of detail in presenting examples of normal and abnormal recordings of neonatal EEG patterns at varying young ages. (springerpub.com)
- Following the pioneering work of C. Dreyfus-Brisac and N. Monod, research into neonatal electroencephalography (EEG) has developed tremendously in France. (inserm.fr)
Inpatient electroencephalography2
- Routine inpatient electroencephalography (EEG) is commonly used as a diagnostic and therapeutic decision-making tool in the care of patients with a wide spectrum of conditions. (jaoa.org)
- I found the recent report by Harmon and colleagues on inpatient electroencephalography (EEG) very interesting. (jaoa.org)
Niedermeyer's Electroencephalography1
- The leading reference on electroencephalography since 1982, Niedermeyer's Electroencephalography is now in its thoroughly updated sixth edition. (ovid.com)
Epileptic1
- Objectives To evaluate whether single-channel electroencephalography (EEG) recording can be conducted in the out-of-hospital setting and whether it can be used to record electrographic signs of convulsive epileptic seizures. (bmj.com)
Brain18
- Electroencephalography ( EEG ) is an electrophysiological monitoring method to record electrical activity on the scalp that has been shown to represent the macroscopic activity of the surface layer of the brain underneath. (wikipedia.org)
- Electroencephalography, or EEG, is a neurological test that involves attaching electrodes to the head of a person to measure and record electrical activity in the brain over time. (encyclopedia.com)
- Throughout the procedure, the electroencephalography unit makes a continuous graphic record of the person's brain activity, or brain waves, on a long strip of recording paper or computer screen. (encyclopedia.com)
- Electroencephalography (EEG) is the science of recording the spontaneous rhythmic electrical activity of a living brain through electrodes on the scalp. (wikipedia.org)
- Electroencephalography is a way to record certain patterns of brain activity, on the skin of the head. (wikipedia.org)
- Electroencephalography (EEG) is a non-invasive technique which records electrical activity generated by the brain through sensors placed on the scalp. (cardiff.ac.uk)
- By using a technique called electroencephalography (EEG) , which measures electrical activity in the brain with high temporal resolution, we can find out more about the neural processes that support these abilities, advancing not only basic research but, ultimately, research in mental health and other applied fields. (plymouth.ac.uk)
- This chapter summarizes the investigation of timing and time perception using scalp-recorded electroencephalography (EEG), a non-invasive technique that measures brain electrical potentials on a millisecond time scale. (nih.gov)
- PhysOrg.com) -- A portable, plugless, brain-to-computer interface using electroencephalography (EEG) electrodes strapped to the scalp has been developed by a team in the US. (medicalxpress.com)
- Electroencephalography (EEG) is the recording of electrical activity along the scalp produced by the firing of neurons within the brain. (medicalxpress.com)
- At present the task of diagnosing brain disorders using electroencephalography (EEG) is still performed by humans, but in years to come it will increasingly be taken over by computerized systems. (medicalxpress.com)
- In this study, we performed functional magnetic resonance imaging and electroencephalography (fMRI-EEG) simultaneously to elucidate the brain areas that were found in a previous study to be activated through stimulation of the magnocellular system, and then investigated the mechanism involved in the dysfunction seen in DD. (scirp.org)
- Electroencephalography (EEG) is a technology which records brain activity. (inria.fr)
- New York, Nov. 16, 2015 (GLOBE NEWSWIRE) -- According to the latest market report published by Persistence Market Research titled " Global Market Study on Electroencephalography (EEG) Devices: Increased Demand for Advanced Imaging Techniques for Brain Monitoring has Led to Proliferation of EEG Devices in Recent Years ", the global EEG devices market was valued at US$ 879.0 Mn in 2014. (cnbc.com)
- Motor imagery electroencephalography (EEG), which embodies cortical potentials during mental simulation of left or right finger lifting tasks, can be used as neural input signals to activate brain computer interface (BCI). (sciweavers.org)
- About electroencephalography equipment An electroencephalogram (EEG) is a technique used to detect electrical activity in the brain using electrodes that are attached to the scalp. (powershow.com)
- Objectives: The aim of this study was to investigate whether early electroencephalography (EEG) activity in infants born very preterm is associated with brain volumes at term, and whether postnatal morbidity affects this association. (lu.se)
- Determining brain lesions by quantified electroencephalography is effected by obtaining absolute power data in a primary frequency domain for a brain region. (google.com)
Seizure2
- The aim of the proposed research is to compare the diagnostic accuracy of a portable wireless electroencephalography (EEG) device (Biosignal Micro-EEG) to standard EEG in identifying abnormal EEG patterns (mainly non-convulsive seizure and non-convulsive status epilepticus) in emergency department (ED) patients with altered mental status. (clinicaltrials.gov)
- Diagnosis is often based on seizure history and electroencephalography (EEG) assessment. (mdpi.com)
Scalp1
- Electroencephalography ( EEG ) is the recording of electrical activity along the scalp. (primidi.com)
Signals1
- We use electroencephalography (EEG) signals to select the robot at which the operator is looking. (epfl.ch)
North America2
- North America dominated the Electroencephalography systems market which can be attributed to increasing occurrence of various sleep & neurodegenerative disorders and accessibility to insurance. (medindia.net)
- This report focuses on the Electroencephalography Equipment in Global market, especially in North America, Electroencephalography Equipment Market in Europe and Asia-Pacific, Electroencephalography Equipment Market in Latin America, Electroencephalography Equipment Market in Middle and Africa. (beforeitsnews.com)
Continuous3
- A continuous video-electroencephalography (EEG) recording, and/or diligent direct observation, facilitates quantification of exact duration of different stages of convulsive seizures (Racine stages 3-5) to determine the severity of SE. (frontiersin.org)
- ECMCC is seeking proposals from qualified vendors to provide real-time standard Electroencephalography (EEG), continuous EEG and video EEG monitoring service to ensure ECMCC has access to quality real-time EEG and video EEG monitoring services. (ecmc.edu)
- Does the first hour of continuous electroencephalography predict neonatal seizures? (bmj.com)
Functional2
- electroencephalography ( EEG ) and functional MRI to observe the neurophysiological indices surrounding performance. (humankinetics.com)
- We used simultaneous acquisition of functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) in the absence of any paradigm to test an ensuing hypothesis, namely that spontaneous fluctuations in this ICN′s activity (as measured by fMRI) should show a positive correlation with the electrical signatures of tonic alertness (as recorded by concurrent EEG). (jneurosci.org)
20162
- According to Stratistics MRC, the Global Electroencephalography (EEG) Systems market is estimated at $700.45 million in 2016 and is expected to reach $1152.23 million by 2022 growing at a CAGR of 8.6% from 2016 to 2022. (medindia.net)
- Global Market Research Report on Electroencephalography and Electromyography Market 2016 is a professional and in-depth complete study on the current state of the Electroencephalography and Electromyography worldwide. (sbwire.com)
Electroencephalogram1
- An electroencephalogram is a recorded electroencephalography. (wikipedia.org)
20201
- What will the market growth rate of Electroencephalography Equipment market in 2020? (beforeitsnews.com)
Electrodes1
- All study participants will undergo electroencephalography using the two devices (standard EEG and micro-EEG) and a combination of standard electrodes and Electro-Cap in a randomized order: 1. (clinicaltrials.gov)
Ictal1
- A method developed for registration of ictal and interictal single-photon emission tomography (SPET), magnetic resonance imaging (MRI) and electroencephalography (EEG) is described. (ebscohost.com)
Technique1
- Endovascular electroencephalography: the technique and its application during carotid amytal assessment. (bmj.com)
Neurophysiological1
- Electroencephalography (EEG) forms the basis of multiple neurophysiological techniques and is a powerful diagnostic tool. (edu.au)
Cerebral1
- Specific patterns of psychophysiological activity from the cerebral cortex, in the form of event-related slow potentials (SPs), as well as spectral content measured by electroencephalography (EEG), occur in the few seconds of performance (preshot) preparation. (humankinetics.com)
Classification1
- ACT-R » Publications » Stages of Processing in Associative Recognition: Evidence from Behavior, Electroencephalography, and Classification. (cmu.edu)
Study4
- This app is a combination of sets, containing practice questions, study cards, terms & concepts for self learning & exam preparation on the topic of Electroencephalography-EEG-CLTM. (slunecnice.cz)
- This study covers the world outlook for electroencephalography (EEG) devices across more than 190 countries. (marketresearch.com)
- This study gives, however, my estimates for the worldwide latent demand, or the P.I.E., for electroencephalography (EEG) devices. (marketresearch.com)
- In the research presented in this thesis, I employed high-density electroencephalography in order to study the neural processes underlying preparation for action. (bham.ac.uk)
Infants1
- Electroencephalography in premature and full-term infants. (inserm.fr)
Medical illustration1
- This medical illustration shows the location of sensors used in an electroencephalography (EEG) diagnostics test to measure and record the brain's electrical activity. (smartimagebase.com)
Market6
- In this report, the global Electroencephalography (EEG) Systems market is valued at USD XX million in 2017 and is expected to reach USD XX million by the end of 2025, growing at a CAGR of XX% between 2017 and 2025. (reportsnreports.com)
- Electroencephalography Equipment Market analysis is provided for global market including development trends by regions, competitive analysis of the Electroencephalography Equipment market. (beforeitsnews.com)
- What are sales, revenue, and price analysis of top manufacturers of Electroencephalography Equipment market? (beforeitsnews.com)
- Who are the distributors, traders and dealers of Electroencephalography Equipment market? (beforeitsnews.com)
- Who are the key vendors in Electroencephalography Equipment market space? (beforeitsnews.com)
- What are the market opportunities, market risk and market overview of the Electroencephalography Equipment market? (beforeitsnews.com)
Cortex1
- Worden MS, Foxe JJ, Wang N et al (2000) Anticipatory biasing of visuospatial attention indexed by retinotopically specific alpha-band electroencephalography increases over occipital cortex. (springer.com)
Diagnostic techniques1
- Electroencephalography (EEG) and an electromyography (EMG) are diagnostic techniques used to measure the electrical activity in human body. (sbwire.com)
Results4
- Electroencephalography and MMPI results of patients with insomnia. (umn.edu)
- Home / Test Division / Reference Database / 1990 to 1999 / 1997 / Electroencephalography and MMPI results of patients with insomnia. (umn.edu)
- Practical Approach to Electroencephalography, by Mark H. Libenson, MD, equips you with just the right amount of guidance you need for obtaining optimal EEG results! (elsevier.com)
- The efficacy, the results of electroencephalography, the body mass index, the serum values of leptin, adiponectin, leptin/adiponectin of patients in the two groups were evaluated and compared. (alliedacademies.org)