evoked potential

(redirected from Motor evoked potentials)
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Related to Motor evoked potentials: Somatosensory evoked potentials

e·voked po·ten·tial

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

evoked potential (EP)

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 ?
Success rate of motor evoked potentials for intraoperative neurophysiologic monitoring: effects of age, lesion location, and preoperative neurologic deficits.
Usefulness of neurogenic motor evoked potentials for spinal cord monitoring: findings in 112 consecutive patients undergoing surgery for spinal deformity.
Severe sensory deficits with preserved motor function after removal of a spinal arteriovenous malformation: correlation with simultaneously recorded somatosensory and motor evoked potentials.
Risk factors for false positive transcranial motor evoked potential monitoring alerts during surgical treatment of cervical myelopathy.
A lack of modulation of motor evoked potential in sensory-impaired individuals with spinal cord injuries.
Comparison between motor evoked potential recording and fiber tracking for estimating pyramidal tracts near brain tumors.
Motor evoked potential changes in ischaemic stroke depend on stroke location.
These physicians could detect ischemia because motor evoked potential monitoring was being utilized and therefore could proceed to the final stages of the surgical procedure.