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)
Frontiers | Phase Lag Analyses on Ictal Scalp Electroencephalography May Predict Outcomes of Corpus Callosotomy for Epileptic...
electroencephalographs
Diagnostic usefulness of linear and nonlinear quantitative EEG analysis in Alzheimers disease<...
Resting frontal EEG asymmetry in children: Meta-analyses of the effects of psychosocial risk factors and associations with...
The Impact of Amplitude-Integrated Electroencephalography on NICU Practice.
Modeling of intracerebral interictal epileptic discharges: Evidence for network interactions<...
Quantitative EEG as a biomarker in mild cognitive impairment with Lewy bodies | Alzheimers Research & Therapy | Full Text
QEEG (Quantitative Electroencephalography) - Christopher Fisher, PhD
Does muscle tension reflect arousal? Relationship between electromyographic and electroencephalographic recordings<...
Intrinsic Connectivity Networks, Alpha Oscillations, and Tonic Alertness: A Simultaneous Electroencephalography/Functional...
Accurate epileptogenic focus localization through time-variant functional connectivity analysis of intracranial...
Efficacy of valproate on electroencephalography and obesity in children with epilepsy | Abstract
Symmetrical event-related EEG/fMRI information fusion in a variational Bayesian framework. - Wellcome Centre for Integrative...
Health Information | Almondsbury Surgery | Electroencephalograph (EEG)
Neural correlates of age-related visual search decline: A combined ERP and sLORETA study - Semantic Scholar
Processed Electroencephalographic Changes Associated with Hypoglycemia during the Resection of an Insulinoma | Anesthesiology |...
archive-nl.com: epilepsievereniging.nl - Neuroimaging and electroencephalographic changes after VNS - Epilepsie Vereniging...
US4417590A - Electroencephalograph - Google Patents
Frontiers | Long-Range Temporal Correlations in Resting State Beta Oscillations are Reduced in Schizophrenia | Psychiatry
CN102821681B - Brain wave measuring device and electric noise estimation method - Google Patents
Interictal abnormalities of gamma band activity in visual evoked responses in migraine: an indication of thalamocortical...
Granger Causality Analysis of Steady-State Electroencephalographic Signals during Propofol-Induced Anaesthesia
Read Download Brain Wave Vibration (Second Edition): Getting Back into
the Rhythm of a Happy, Healthy Life Ebook Full ~...
EnkephaloVision: Anatomical Functionality Indicated by Ultrashort Transient Regional EEG Spectral Power Changes during...
Evaluation of a Handheld Event Related Potential (ERP)/Quantitative Electroencephalography (qEEG) System (COGNISION™) as a...
Evaluation of a Handheld Event Related Potential (ERP)/Quantitative Electroencephalography (qEEG) System (COGNISION™) as a...
Quantitative EEG in ischemic stroke : correlation with infarct volume and functional status in posterior circulation and...
Your Brain Waves May Show Whether Youre Paying Attention in Class
Neurophysiological Mechanisms - Oxford Scholarship
Neurophysiological Mechanisms and Consciousness - Ciba Foundation Symposium 69 - Brain and Mind - Creutzfeldt - Wiley Online...
QEEG (Quantitative Electroencephalography) - Listen And Learn Centre
Best Electroencephalography Eeg Doctor in Gurgaon, Electroencephalography Eeg Doctors | Credihealth
Computer analysis of epileptiform EEG abnormalities | Cleveland Clinic Journal of Medicine
Niedermeyers Electroencephalography: Basic Principles, Clinical Applications, and Related Fields
Category: Brain Mapping/QEEG - BELLABEE
UBIRA ETheses - Neurophysiological correlates of preparation for action measured by electroencephalography
IJERPH | Free Full-Text | Binge Drinking Effects on EEG in Young Adult Humans | Notes
Neuroscience2014 | Per session
Evaluation of quantitative EEG by classification and regression trees to characterize responders to antidepressant and placebo...
Detection of synchronized oscillations in the electroencephalogram: an evaluation of methods. - Nuffield Department of Clinical...
MRI with and without a high-density EEG cap--what makes the difference? - Zurich Open Repository and Archive
A decision support framework for the discrimination of children with controlled epilepsy based on EEG analysis | Journal of...
Brain waves, or the EEG are electrical signals that can be
recorded from the brain, either directly or through the scalp. The...
Employing neuronal networks to investigate the pathophysiological basis of abnormal cortical oscillations in Alzheimers...
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, Carlow - Carlow - Medical equipment, supplies, Carlow - 1676125
Cardiograph, doppler, encephalograph, miograph, rheograph, Aberdeen - Aberdeen - Medical equipment, supplies, Aberdeen - 1676239
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
Electroencephalography
... (EEG) is a method to record an electrogram of the spontaneous electrical activity of the brain. The ... Casson A, Yates D, Smith S, Duncan J, Rodriguez-Villegas E (2010). "Wearable electroencephalography. What is it, why is it ... Coenen A, Fine E, Zayachkivska O (2014). "Adolf Beck: a forgotten pioneer in electroencephalography". Journal of the History of ... Jestrović I, Coyle JL, Sejdić E (October 2015). "Decoding human swallowing via electroencephalography: a state-of-the-art ...
Pharmaco-electroencephalography
Fink M. Pharmaco-Electroencephalography: A Selective History of the Study of Brain Responses to Psychoactive Drugs. In: T. Ban ... Electroencephalography (EEG) is the science of recording the spontaneous rhythmic electrical activity of a living brain through ...
Quantitative electroencephalography
... (qEEG or QEEG) is a field concerned with the numerical analysis of electroencephalography ( ... Techniques used in digital signal analysis are extended to the analysis of electroencephalography (EEG). These include wavelet ...
Amplitude integrated electroencephalography
... (aEEG) or cerebral function monitoring (CFM) is a technique for monitoring brain ... Electroencephalography, Electrophysiology, Neurophysiology, Neurotechnology, Electrodiagnosis, Emerging technologies, ...
Electroencephalography functional magnetic resonance imaging
Laufs H, Duncan JS (August 2007). "Electroencephalography/functional MRI in human epilepsy: what it currently can and cannot do ... EEG-fMRI (short for EEG-correlated fMRI or electroencephalography-correlated functional magnetic resonance imaging) is a ... "Implementation and Evaluation of Simultaneous Video-Electroencephalography (Video-EEG) and functional Magnetic Resonance ...
Stereoelectroencephalography
Electroencephalography). ...
Cognitive science
Electroencephalography. EEG measures the electrical fields generated by large populations of neurons in the cortex by placing a ...
Spike-and-wave
Electroencephalography and Clinical Neurophysiology. 17 (4): 398-404. doi:10.1016/0013-4694(64)90163-4. PMID 14236822. Bazhenov ...
EEG microstates
Lehmann D (November 1971). "Multichannel topography of human alpha EEG fields". Electroencephalography and Clinical ... Electroencephalography and Clinical Neurophysiology. 48 (6): 609-21. doi:10.1016/0013-4694(80)90419-8. PMID 6155251. Lehmann D ... Electroencephalography and Clinical Neurophysiology. 67 (3): 271-88. doi:10.1016/0013-4694(87)90025-3. PMID 2441961. Pascual- ...
Neurofeedback
January 2020). "Electroencephalography-based neurofeedback as treatment for post-traumatic stress disorder: A systematic review ... Typically, electrical activity from the brain is collected via sensors placed on the scalp using electroencephalography (EEG), ... Anand BK, Chhina GS, Singh B (June 1961). "Some aspects of electroencephalographic studies in yogis". Electroencephalography ... Several neurofeedback protocols exist, with additional benefit from use of quantitative electroencephalography (QEEG) or ...
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 ... or it can be further processed through analytical procedures to produce quantitative electroencephalography (qEEG). If qEEG ...
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 ... CS1 maint: DOI inactive as of July 2022, Electroencephalography, Electrophysiology, Neurophysiology, Neurotechnology, Brain- ... resulting in both a much greater invisibility and wearer mobility compared to full scalp electroencephalography (EEG), but also ...
Infantile spasms-broad thumbs syndrome
Clinical Electroencephalography. 21 (2): 93-95. doi:10.1177/155005949002100209. ISSN 0009-9155. v t e (Orphaned articles from ...
Esther Rodriguez-Villegas
"Wearable Electroencephalography". IEEE Engineering in Medicine and Biology Magazine. 29 (3): 44-56. doi:10.1109/MEMB. ...
Frederic A. Gibbs
The Gibbs published the book Atlas of Electroencephalography in 1941, with a second edition in 1951. Their book valued the ... Frederic Andrews Gibbs (1903-1992) was an American neurologist who was a pioneer in the use of electroencephalography (EEG) for ... Interview by James L. Stone and John R. Hughes". Clinical Electroencephalography. 21 (4): 175-82. doi:10.1177/ ... Niedermeyer, Ernst & Da Silva, Fernando Lopes (November 2004). Electroencephalography: Basic Principles, Clinical Applications ...
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. S2CID 43506749. Roman, H.R. & ...
Frontal lobe disorder
Clinical Electroencephalography. 32 (1): 20-3. doi:10.1177/155005940103200106. PMID 11202137. S2CID 35417045. Leadership, ...
Visual N1
Electroencephalography & Clinical Neurophysiology, 75(6): 528-542. Callaway, E., & Halliday, R. (1982). The effect of ... Contingent negative variation Difference due to memory Early left anterior negativity Electroencephalography ...
Hypsarrhythmia
Gibbs, FA (1952). Atlas of electroencephalography. Cambridge, Mass.: Addison-Wesley. Hrachovy, RA; Frost JD (2003). "Infantile ...
P3b
Electroencephalography and Clinical Neurophysiology. 38 (4): 387-401. CiteSeerX 10.1.1.326.332. doi:10.1016/0013-4694(75)90263- ...
N2pc
Eimer, M. (1996). "The N2pc as an indicator of attentional selectivity". Electroencephalography and Clinical Neurophysiology. ...
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; ...
K-complex
Electroencephalography, Sleep physiology). ...
Contingent negative variation
The contingent negative variation (CNV) is a negative slow surface potential, as measured by electroencephalography (EEG), that ... Electroencephalography and Clinical Neurophysiology. 63 (5): 445-463. doi:10.1016/0013-4694(86)90127-6. PMID 2420561. Hultin, L ... Electroencephalography and Clinical Neurophysiology. 98: 425-448. Zappoli, R. (2003). "Permanent or transitory effects on ...
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 BA, Knight RT, Smith RL (May 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 ...
Short-term effects of alcohol consumption
Stone BM (June 1980). "Sleep and low doses of alcohol". Electroencephalography and Clinical Neurophysiology. 48 (6): 706-709. ...
Alcohol use and sleep
Electroencephalography and Clinical Neurophysiology. 1980; 48: 706-709. Schuckit, M.A. Low level of response to alcohol as a ...
F wave
Electroencephalography and Clinical Neurophysiology. 101 (5): 365-374. ISSN 0013-4694. PMID 8913188. Sathya, G. R.; ...
Infantile Spasm (West Syndrome) Workup: Approach Considerations, CT Scanning and MRI, Electroencephalography
Continuous electroencephalography in the medical intensive c... : Critical Care Medicine
Continuous electroencephalography in the medical intensive care unit* : Critical Care Medicine. You may be trying to access ... Continuous electroencephalography in the medical intensive care unit*. Oddo, Mauro MD; Carrera, Emmanuel MD; Claassen, Jan MD; ... between July 2004 and January 2007 without known acute neurologic injury and who underwent continuous electroencephalography ...
Electroencephalography Archives - Transactions on NanoBioscience (TNB)
EEG: Electroencephalography | Real-time EEG Filtering | Research | BIOPAC
Video EEG Monitoring
Special Issue: Advances in the Use of Quantitative Electroencephalography and Neurofeedback | Biofeedback
Special Issue: Advances in the Use of Quantitative Electroencephalography and Neurofeedback Donald Moss, PhD, BCB, BCN; Donald ... Donald Moss, John Davis, Roger DeBeus; Special Issue: Advances in the Use of Quantitative Electroencephalography and ... This special issue focuses on advances in the applications of quantitative electroencephalography (QEEG) and neurofeedback. The ...
Overview ‹ The Thinking Cap 2.0: Fostering growth mindset of children by means of electroencephalography and perceived magic -...
The Thinking Cap 2.0: Fostering growth mindset of children by means of electroencephalography and perceived magic. Copyright ... The Thinking Cap 2.0: Fostering growth mindset of children by means of electroencephalography and perceived magic *Overview ... fitted with a commercially available electroencephalography (EEG) headset or headband and a Bluetooth speaker. We adopt the ... fitted with a commercially available electroencephalography (EEG) headset or headband and a Bluetooth speaker. We adopt the ...
Quantitative epileptiform burden and electroencephalography background features predict post-traumatic epilepsy | Journal of...
Background Post-traumatic epilepsy (PTE) is a severe complication of traumatic brain injury (TBI). Electroencephalography aids ... We evaluated the association of quantitative electroencephalography features with PTE1 using logistic regressions and examined ... Future trials should incorporate quantitative electroencephalography features to validate this enhancement of PTE risk ... adding quantitative electroencephalography features to a combined mechanism and CT model improved performance (AUC (95% CI), ...
A multimodal emotion recognition method based on facial expressions and electroencephalography
This method is based on facial expressions and electroencephalography (EEG). The image classification method of facial ... A multimodal emotion recognition method based on facial expressions and electroencephalography. .noexiste{ color: #000; } . ... A multimodal emotion recognition method based on facial expressions and electroencephalography; Elsevier; Biomedical Signal ...
Fuzzy Inference System for Edge Detection in Flat Electroencephalography Image - ASM Science Journal
Quantifying errors during the source localization process in electroencephalography for confocal systems - FORTH / ICE-HT
A Prospective Study of Diagnostic Accuracy in Electroencephalography Predicts Delayeds Cerebral Ischemia
Electroencephalography provides a continuous measure of cerebral function with robust, predictable responses to ischemia. ... Electroencephalography provides a continuous measure of cerebral function with robust, predictable responses to ischemia. ... A Prospective Study of Diagnostic Accuracy in Electroencephalography Predicts Delayeds Cerebral Ischemia. Aboufatima Hama ...
Intracranial electroencephalography seizure onset patterns and surgical outcomes in nonlesional extratemporal epilepsy:...
keywords = "Electroencephalography, Epilepsy surgery, High-frequency oscillation",. author = "Wetjen, {Nicholas M.} and Marsh ... Intracranial electroencephalography seizure onset patterns and surgical outcomes in nonlesional extratemporal epilepsy: ... title = "Intracranial electroencephalography seizure onset patterns and surgical outcomes in nonlesional extratemporal epilepsy ... T1 - Intracranial electroencephalography seizure onset patterns and surgical outcomes in nonlesional extratemporal epilepsy ...
Electroencephalography | Medical Free/Libre and Open Source Software
Serval - The neuro-ICU patient and electroencephalography paroxysms: if and when to treat.
Recording human locomotion control using non-invasive electroencephalography - CROSBI
Recording human locomotion control using non-invasive electroencephalography // Movement in Human Life and Health / Baić, M. et ... Recording human locomotion control using non-invasive electroencephalography // Movement in Human Life and Health / Baić, M. et ... CONCLUSIONS: It was found, that non-invasive electroencephalography may be a very useful tool in information extraction for ... Recording human locomotion control using non-invasive electroencephalography. Galzina, Vjekoslav; Klaričić, Ivana; Lujić, ...
99m</sup>Tc-HMPAO regional cerebral blood flow and quantitative electroencephalography in Alzheimer's disease: A correlative...
99mTc-HMPAO regional cerebral blood flow and quantitative electroencephalography in Alzheimers disease: A correlative study. ... Dive into the research topics of 99mTc-HMPAO regional cerebral blood flow and quantitative electroencephalography in ... 99mTc-HMPAO regional cerebral blood flow and quantitative electroencephalography in Alzheimers disease : A correlative study. ... 99mTc-HMPAO regional cerebral blood flow and quantitative electroencephalography in Alzheimers disease : A correlative study. ...
Electroencephalography theta/beta ratio covaries with mind wandering and functional connectivity in the executive control...
The ratio between frontal resting-state electroencephalography (EEG) theta and beta frequency power (theta/beta ratio, TBR) is ... Electroencephalography theta/beta ratio covaries with mind wandering and functional connectivity in the executive control ... The ratio between frontal resting-state electroencephalography (EEG) theta and beta frequency power (theta/beta ratio, TBR) is ...
The Feasibility and Utility of Continuous Sleep Monitoring in Critically Ill Patients Using a Portable Electroencephalography...
... we investigated the feasibility and utility of monitoring sleep in the ICU setting using a portable electroencephalography (EEG ... The Feasibility and Utility of Continuous Sleep Monitoring in Critically Ill Patients Using a Portable Electroencephalography ... we investigated the feasibility and utility of monitoring sleep in the ICU setting using a portable electroencephalography (EEG ...
Electroencephalography and clinical neurophysiology
DI-fusion Brief rhythmic discharges in electroencephalography on an...
Acquired Epileptic Aphasia Workup: Approach Considerations, Magnetic Resonance Imaging, PET and SPECT Scanning
Awake electroencephalography. On awake EEG, the background is usually normal initially. Focal theta slowing over the area of ... Sleep electroencephalography. Besides the discharges seen during the wake state, sleep tends to promote the appearance of ... Electroencephalography. Although electroencephalographic (EEG) abnormalities are present in acquired epileptic aphasia (AEA) by ... Most patients with acquired epileptic aphasia have no clear etiology for the aphasia, abnormal electroencephalography (EEG), ...
Neuromodulatory effects of theta burst stimulation to the prefrontal cortex | Scientific Data
Electroencephalography. EEG data were acquired using a Refa 2048 Hz EEG system (TMSi, Oldenzaal, the Netherlands) and an ... Electroencephalography (EEG) can potentially be used to assess the neuromodulatory mechanism of action of TBS and the ... EEG-BIDS, an extension to the brain imaging data structure for electroencephalography. Scientific data 6, 1-5 (2019). ... Blocks consisting of four minutes of eyes-open resting-state electroencephalography (RS-EEG) and 100 single pulses of ...
Electroencephalography | proparanoid
IMSEAR at SEARO: Electroencephalography in cerebral malaria.
Electroencephalography
Electroencephalography Archives • LITFL
Electroencephalography - Medical Dictionary
Quantitative electroencephalographyElectromyographyEvoked potentialsVideo ElectroencephalographyEpilepsy2022Brain's electrical activityElectrodermal activityMagnetoencephalographySeizuresCerebralClinicalContinuousMagneticUsefulnessMonitoringPatientsBrainProcedureThetaConclusionsDiagnosisSpecialistsAssessDiagnosticImageResearchPatientSystemsMethod
Quantitative electroencephalography7
- This special issue focuses on advances in the applications of quantitative electroencephalography (QEEG) and neurofeedback. (allenpress.com)
- We evaluated the association of quantitative electroencephalography features with PTE 1 using logistic regressions and examined their predictive value relative to TBI mechanism and CT abnormalities. (bmj.com)
- Future trials should incorporate quantitative electroencephalography features to validate this enhancement of PTE risk stratification models. (bmj.com)
- In this study the neuropsychological status of patients with Alzheimer's disease (AD) was correlated with quantitative electroencephalography (qEEG) and regional cerebral blood flow (rCBF) both in the cortex and in deep gray matter structures. (elsevier.com)
- Contrasting current neuroimaging with quantitative electroencephalography, recent deep brain stimulation treatments. (futurehealth.org)
- Neurofeedback is based on a kind of brain mapping called quantitative electroencephalography, or qEEG . (capitaldistrictneurofeedback.com)
- The Oxford Neurofeedback program evaluates brain activity patterns and teaches self-regulation of brain function through quantitative electroencephalography (qEEG). (oxfordrecoverycenter.com)
Electromyography5
- Within the last decade we can observe rise of the need to qualitatively and quantitatively link measurable biomarkers (like the electrical activation patterns of human brain by means of electroencephalography (EEG), magnetoencephalography, polysomnography, functional magnetic-resonance imaging or surface electromyography of skeletal muscles activation) during movement to the behaviour of the biomechanical system. (irb.hr)
- Biosignals that can assess stressors involve physiological instrumentation such as electroencephalography (EEG), electrocardiography (ECG), and electromyography (EMG), which can measure bodily parameters (skin temperature, eye activity, respiratory rate, pupil size, and speech). (org.sa)
- Dr. Khan provides various diagnostic tests, to include nerve conduction studies (NCS), electromyography (EMG) and electroencephalography (EEG). (urphysiciangroup.org)
- During his fellowship training at University of Chicago he became skilled in electrodiagnostics including electroencephalography, electromyography, and nerve conduction studies. (sandiegoinjurynetwork.com)
- Dr. Baccoli is Board Certified in Neurology and Sleep Medicine and received specialty fellowship training in electroencephalography (EEG), evoked potentials (EP), electromyography (EMG) and sleep disorders. (nerehab.com)
Evoked potentials1
- Electroencephalography and evoked potentials. (medlineplus.gov)
Video Electroencephalography1
- Embrace was tested in a clinical study involving 135 patients with epilepsy who were admitted to epilepsy monitoring units for continuous monitoring with video electroencephalography while simultaneously wearing the device, which records electrodermal activity. (medscape.com)
Epilepsy1
- Electroencephalography (EEG) is a method for investigating the functional condition of the head enabling diagnosis of different forms of epilepsy, the presence of tumours, cerebral function disorders due to certain central nervous system diseases, previous strokes and injuries. (medicina.ru)
20221
- Méthodologie: Entre septembre 2021 et février 2022, des écouvillonnages oropharyngés et/ou nasopharyngés de travailleurs symptomatiques COVID-19 et apparemment en bonne santé sélectionnés consécutivement du site minier de Wahgnion dans le sud-ouest du Burkina Faso qui ont consenti à l'étude ont été prélevés selon les deux programme de quart de semaines et testé pour le SRAS-CoV-2 à l'aide d'un test RT-PCR. (bvsalud.org)
Brain's electrical activity1
- Most wearable BCIs use electroencephalography (EEG) to evaluate the brain's electrical activity. (thekickassgame.com)
Electrodermal activity1
- Cognitive workload has been measured through numerous methodologies including electroencephalography (EEG), electrodermal activity (EDA), subjective rating scales (e.g. (cdc.gov)
Magnetoencephalography1
- Brainstorm is a collaborative open-source Matlab application dedicated to magnetoencephalography (MEG) and electroencephalography(EEG) data visualization, processing and cortical source estimation. (medfloss.org)
Seizures2
- A total of 201 consecutive patients admitted to the MICU between July 2004 and January 2007 without known acute neurologic injury and who underwent continuous electroencephalography monitoring (cEEG) for investigation of possible seizures or changes in mental status. (lww.com)
- Here, he was continuously monitored with electroencephalography (EEG), which helped the doctors to detect and manage seizures as they happened. (iflscience.com)
Cerebral5
- Electroencephalography provides a continuous measure of cerebral function with robust, predictable responses to ischemia. (alliedacademies.org)
- IMSEAR at SEARO: Electroencephalography in cerebral malaria. (who.int)
- Electroencephalography in cerebral malaria. (who.int)
- Electroencephalography (EEG) was performed in 13 male patients with cerebral malaria during the first 24 hours of admission, using a 10-channel, 10-20 system EEG machine (6 montages, 20 minute duration). (who.int)
- Registro de las corrientes eléctricas desarrolladas en el cerebro por medio de electrodos aplicados sobre el cráneo, en la superficie del cerebro, o colocados dentro de la sustancia cerebral. (bvsalud.org)
Clinical2
- The innovation of electroencephalography (EEG) more than a century ago supports the technique to assess brain structure and function in clinical health and research applications. (org.sa)
- This authors define the clinical usefulness of electroencephalography in evaluating neuropsychiatric disorders. (psychiatrictimes.com)
Continuous2
- Continuous electroencephalography in the medical intensive c. (lww.com)
- The Feasibility and Utility of Continuous Sleep Monitoring in Critically Ill Patients Using a Portable Electroencephalography Monitor. (escholarship.org)
Magnetic3
- Electroencephalography (EEG) and Magnetic Resonance Imaging (MRI) are non invasive neuro-imaging modalities largely used in neurology explorations. (embs.org)
- Syncope is rarely a manifestation of neurologic disease, yet 11% to 58% of patients with a first episode of uncomplicated syncope undergo extensive neuroimaging with magnetic resonance imaging, computed tomography, electroencephalography (EEG), and carotid ultrasonography. (ccjm.org)
- This intermediate state, the so-called "criticality," can also be detected using magnetic resonance imaging (MRI) or electroencephalography (EEG). (techxplore.com)
Usefulness1
- In this paper, the authors investigated the usefulness of intracranial electroencephalography (iEEG) in the identification of surgical candidates. (elsevier.com)
Monitoring2
- In this pilot study, we investigated the feasibility and utility of monitoring sleep in the ICU setting using a portable electroencephalography (EEG) monitor, the SedLine brain monitor. (escholarship.org)
- Electroencephalography monitoring is performed during surgeries in the brain or major vascular surgeries. (medicalonlinedirectory.com)
Patients3
- Electroencephalography is a procedure which is indicated for patients of any age. (medicina.ru)
- Electroencephalography at the height of a pandemic: EEG findings in patients with COVID-19. (bvsalud.org)
- Contexte: Pour contrôler la propagation de la maladie à coronavirus 19 (COVID-19) causée par le syndrome respiratoire aigu sévère coronavirus-2 (SRAS-CoV-2), il est nécessaire d'identifier et d'isoler de manière adéquate les patients infectieux, en particulier sur le lieu de travail. (bvsalud.org)
Brain6
- Prof. Haueisen gave an invited talk entitled: "Dry electrodes for Electroencephalography" on 12.11.2015 at the international conference "Brain States: Characterization and Neuromodulation by DBS" November 11-13, 2015, Cologne, Germany ( https://dbs.veomed.net/ ). (andreaproject.eu)
- Electroencephalography (EEG) has become the most significant input signal for brain computer interface (BCI) based systems. (deepai.org)
- Electroencephalography reveals changes in blood flow in the brain and the surgeon can take immediate corrective action if there is a problem. (medicalonlinedirectory.com)
- We introduce Teegi, a Tangible ElectroEncephaloGraphy (EEG) Interface that enables novice users to get to know more about something as complex as brain signals, in an easy, en- gaging and informative way. (inria.fr)
- Electroencephalography is an effective method to measure brain waves using electrodes attached to the scalp. (manhwaxyz.net)
- The brain.space system uses electroencephalography (EEG) to pick up tiny electrical signals produced when neurons in the brain communicate with each other. (pioneeringminds.com)
Procedure1
- Since electroencephalography itself requires an elaborate procedure, we aim to find a minimal setup to reduce time and participants needed to conduct a reliable study of image and video quality. (tu-bs.de)
Theta2
- The ratio between frontal resting-state electroencephalography (EEG) theta and beta frequency power (theta/beta ratio, TBR) is negatively related to cognitive control. (nih.gov)
- Electroencephalography (EEG) revealed increased alpha band activity and decreased theta band activity during and after FA on Tanden breathing. (virginia.edu)
Conclusions1
- CONCLUSIONS: It was found, that non-invasive electroencephalography may be a very useful tool in information extraction for further biomechanical analysis. (irb.hr)
Diagnosis1
- Electroencephalography aids early post-traumatic seizure diagnosis, but its optimal utility for PTE prediction remains unknown. (bmj.com)
Specialists1
- Its faculty members include specialists in developmental and metabolic storage diseases, epileptology, and electroencephalography. (uclahealth.org)
Assess1
- Electroencephalography (EEG) can potentially be used to assess the neuromodulatory mechanism of action of TBS and the underlying moderators of the observed heterogeneity. (nature.com)
Diagnostic1
- Le test de réaction en chaîne par polymérase en temps réel (RT-PCR) est la méthode de confirmation recommandée pour le diagnostic de l'infection par le SRAS-CoV-2. (bvsalud.org)
Image1
- To get an objective view on (subjectively) perceived image quality, electroencephalography can be used. (tu-bs.de)
Research1
- Electroencephalography in drug research : proceedings of the Symposium "Electroencephalography in Drug Research", held in Berlin, 27-29 June 1980 / edited by Werner M. Herrmann. (who.int)
Patient1
- The neuro-ICU patient and electroencephalography paroxysms: if and when to treat. (unil.ch)
Systems1
- Inquire Before purchasing the electroencephalography eeg systems devices market Report? (polarismarketresearch.com)
Method1
- This method is based on facial expressions and electroencephalography (EEG). (conicet.gov.ar)