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Visually evoked potentials [PDF]
, 2019 The term visually evoked potential (VEP) refers to electrical potentials recorded from scalp overlying visual cortex that have been extracted from the electroencephalogram by signal averaging. Usually the recording electrode is placed on the midline of the occipital scalp at the back of the head.
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Evoked Potentials in the Elderly
Journal of Clinical Neurophysiology, 1995Evoked potentials (EPs) provide a quantitative measure of function rather than structure of certain pathways and processes within the nervous system. These systems and processes change with maturation and senescence. There are minimal somatosensory EPs changes after maturation until senescence. There are moderate changes in interpeak latencies, but few
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Evoked potentials and psychopathy
International Journal of Psychophysiology, 1989All previous studies which have assessed evoked potentials (EPs) in psychopathic populations are critically reviewed. Three main themes emerge from this review. Firstly early EP studies suggest a dysfunctional arousal system at a brainstem or parietal cortex level in psychopaths.
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Journal of Clinical Neurophysiology, 1994
The recording of visual evoked potentials (VEPs) is an important means of obtaining reproducible, quantitative data on the function of the anterior visual pathways. In this review, the technical aspects of recording VEPs are briefly discussed, components of the VEPs are described, and the clinical uses of VEPs are considered.
Douglas S. Goodin, Michael J. Aminoff
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The recording of visual evoked potentials (VEPs) is an important means of obtaining reproducible, quantitative data on the function of the anterior visual pathways. In this review, the technical aspects of recording VEPs are briefly discussed, components of the VEPs are described, and the clinical uses of VEPs are considered.
Douglas S. Goodin, Michael J. Aminoff
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Otolaryngologic Clinics of North America, 1991
Auditory evoked potentials (AEPs) have become an integral part of the current otologic/audiologic test battery. With these techniques, synchronous neural activity can be examined from the peripheral end organ of hearing up to the cortical structures responsible for audition.
R A, Ruth, P R, Lambert
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Auditory evoked potentials (AEPs) have become an integral part of the current otologic/audiologic test battery. With these techniques, synchronous neural activity can be examined from the peripheral end organ of hearing up to the cortical structures responsible for audition.
R A, Ruth, P R, Lambert
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2009
Visual evoked potentials (VEPs) have a role in evaluating patients with neurologic disease affecting the optic pathway. In patients with lesions involving the optic nerve and anterior chiasm, VEPs have several important advantages: (1) they are objective and reproducible and may demonstrate a functional abnormality that is not evident on physical ...
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Visual evoked potentials (VEPs) have a role in evaluating patients with neurologic disease affecting the optic pathway. In patients with lesions involving the optic nerve and anterior chiasm, VEPs have several important advantages: (1) they are objective and reproducible and may demonstrate a functional abnormality that is not evident on physical ...
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The Evoked Potential in Pharmacopsychiatry
Neuropsychobiology, 1977Somatosensory, visual and auditory evoked potentials (EP) were recorded in different psychatric populations before as well as during psychotropic drug treatment. Drug-free schizophrenic patients showed shorter latencies, smaller amplitudes and an increased intraindividual variability in their EP than controls.
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Current Opinion in Neurology, 2001
Loud clicks, short tone bursts, head taps and short duration transmastoid currents are all capable of activating vestibular receptors and evoking reflex changes in tonic electromyogram activity within the sternocleidomastoid muscles. Because they derive from averaged electromyograms, the responses are termed 'vestibular evoked myogenic potentials'. The
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Loud clicks, short tone bursts, head taps and short duration transmastoid currents are all capable of activating vestibular receptors and evoking reflex changes in tonic electromyogram activity within the sternocleidomastoid muscles. Because they derive from averaged electromyograms, the responses are termed 'vestibular evoked myogenic potentials'. The
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Best Practice & Research Clinical Anaesthesiology, 2006
This chapter will focus on the two auditory evoked potentials (AEP) most commonly used to assess the effects of general anesthetics on the brain, the auditory middle latency response (AMLR) and the 40 Hz auditory steady-state response (40 Hz-ASSR). We will review their physiological basis, the recording methodology, the effects of general anesthetics ...
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This chapter will focus on the two auditory evoked potentials (AEP) most commonly used to assess the effects of general anesthetics on the brain, the auditory middle latency response (AMLR) and the 40 Hz auditory steady-state response (40 Hz-ASSR). We will review their physiological basis, the recording methodology, the effects of general anesthetics ...
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2017
The term “motor evoked potential” (MEP) commonly refers to the action potential elicited by non-invasive (magnetic) stimulation of the motor cortex through the scalp. MEPs can be recorded using surface electromyography from all skeletal muscles and are mediated by fast-conducting cortico-motoneuronal connections projecting monosynaptically to the alpha-
Abbruzzese G., Trompetto C.
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The term “motor evoked potential” (MEP) commonly refers to the action potential elicited by non-invasive (magnetic) stimulation of the motor cortex through the scalp. MEPs can be recorded using surface electromyography from all skeletal muscles and are mediated by fast-conducting cortico-motoneuronal connections projecting monosynaptically to the alpha-
Abbruzzese G., Trompetto C.
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