evoked potential


Also found in: Dictionary, Thesaurus, Legal, Acronyms, Encyclopedia, Wikipedia.
Related to evoked potential: Somatosensory evoked potential

e·voked po·ten·tial

an event-related potential, elicited by, and time-locked to, a stimulus.
See also: evoked response.

evoked potential (EP)

[ivōkt′]
Etymology: L, evocare, to call forth, potentia, power
an electrical response in the brainstem or cerebral cortex that is elicited by a specific stimulus. The stimulus may affect the visual, auditory, or somatosensory pathway, producing a characteristic brain wave pattern. The activity and function of the system may be monitored during surgery while the patient is unconscious. The surgeon is thus able to prevent damage to the nerves during operative procedures. Evoked potentials are also used to diagnose multiple sclerosis and various disorders of hearing and of sight. Kinds of evoked potentials include brainstem auditory evoked response, somatosensory evoked potential, and visual-evoked potential. See also brain electric activity map.

e·voked po·ten·tial

(ē-vōkt pō-tenshăl)
Event-related potential, elicited by, and time-locked to, a stimulus.

Evoked potential

A test of nerve response that uses electrodes placed on the scalp to measure brain reaction to a stimulus such as a touch.
Mentioned in: Spinal Stenosis

evoked potential,

n an electrical response in the brainstem or cerebral cortex that is elicited by a specific stimulus. This property of the brain may be used to monitor brain function during surgery.

evoked potential

References in periodicals archive ?
BAEP was performed on Allengers Scorpio-electromyography (EMG), evoked potentials (EP), nerve conduction study (NCS), in neurophysiology laboratory made sound and light attenuated for the test.
Serial recording of visual and somatosensory evoked potentials in multiple sclerosis.
Evidence-based guideline update: Intraoperative spinal monitoring with somatosensory and transcranial electrical motor evoked potentials.
Short latency auditory evoked potentials recorded from non-anaesthetized thoroughbred horses.
Accordingly, a progressive reduction of cortical somatosensory evoked potentials in parallel with functional impairment evolution was observed in longitudinal studies of HD patients [26].
Schier, Human steady-state visually evoked potential topography and attention [Ph.
The value of intraoperative motor evoked potential monitoring during surgical intervention for thoracic idiopathic spinal cord herniation.
Practice parameter: the usefulness of evoked potentials in identifying clinically silent lesions in patients with suspected multiple sclerosis (an evidence-based review).
A somatosensory evoked potential (SEP) is the electrical activity response measured at the skin's surface following controlled peripheral nerve stimulation.
Performance of the ARX-derived auditory evoked potential index as an indicator of anesthetic depth: a comparison with bispectral index and hemodynamic measures during propofol administration.
Food and Drug Administration (FDA) clearance to market its Evoked Potential Assessment Device (EPAD).