evoked response


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Related to evoked response: Auditory Evoked Response, Somatosensory Evoked Response, visual evoked potential

e·voked re·sponse

an alteration in the electrical activity of a region of the nervous system through which an incoming sensory stimulus is passing; may be somatosensory (SER), brainstem auditory (BAER), or visual (VER).
See also: evoked potential.

evoked response

Evoked potential Cardiology An area under an R wave that depends on the rate of myocardial depolarization; ↓ in cumulative R-wave area mandates ↑ pacing rate Neurology Any stimulus-evoked electrical potential recorded by EEG, which varies according to intensity, modality, location, and level of consciousness; ER is detectable over the appropriate cortical receptive areas by EEG after stimulation of sense organs or peripheral nerves–eg, brainstem auditory, transcortical motor, pattern shift visual, and somatosensory ERs; ERs may be used to guide surgical removal of tumors growing around important nerves. See White noise.

e·voked re·sponse

(ē-vōkt' rĕ-spons')
An alteration in the electrical activity of a region of the nervous system through which an incoming sensory stimulus is passing.

e·voked re·sponse

(ER) (ē-vōkt' rĕ-spons')
Alteration in electrical activity of a region of nervous system through which an incoming sensory stimulus is passing; may be somatosensory (SER), brainstem auditory (BAER), or visual (VER).

evoked response

a technique for the detection of low amplitude electrical activity in response to stimuli for the purpose of evaluating sensory mechanisms. Called also evoked potential.

brainstem auditory evoked response (BAER)
variations in electromyographic or electroencephalographic recordings in response to sound stimuli. Used to evaluate brainstem lesions and hearing in dogs.
visual evoked response r's
electrical potentials to flash or pattern displays that are recorded over the occipital lobe region.
References in periodicals archive ?
Since the evoked response is periodic, it can best be represented in the frequency domain thereby simplifying measurements.
Newborn auditory brainstem evoked responses (ABRs): Prenatal and contemporary correlates.
Differential effects of isoflurane/ nitrous oxide on posterior tibial somatosensory evoked responses of cortical and subcortical origin.
This theory, he argues, which emphasized organized play as a crucial component of social development and character-building, evoked responses from many creative writers who criticized the theory's implicit acceptance of the social and economic inequality endemic to corpo rate capitalism.
I would probably try other tests, including evoked responses and examinations of fluid obtained by spinal tap.
Patients with schizophrenia have abnormalities in a number of evoked responses (ERPs) that measure brain function including the p50, N100, Mis-Match Negativity, and p300 responses.
Thus, today, we can say with confidence that if a patient scores normal on the MRI examination, visual evoked responses, and spinal fluid testing, a dignosis of MS becomes highly improbable.
Also the development of clinically useful objective retinal function tests: local macular ERG-VER, electrically evoked responses (EER), assessment of visual prognosis in severe retinal detachment or opaque media and infant vision testing.
His interests in neuroscience research stem from this time, when during pursuit of a Bachelor of Medical Science degree he participated in the first demonstration of brain-stem evoked responses to auditory stimuli in humans.
Predictive value of intraoperative brainstem auditory evoked responses in surgery for conductive hearing losses.