Evoked responses Health Dictionary

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Evoked Responses: From 1 Different Sources

The tracing of electrical activity in the brain in response to a specific external stimulus. The procedure is similar to that for an EEG.

The technique is used to check the functioning of various sensory systems (such as sight, hearing, or touch). The information obtained can be used to reveal abnormalities caused by inflammation, pressure from a tumour, or other disorders, and to help confirm a diagnosis of multiple sclerosis.

Health Source: BMA Medical Dictionary
Author: The British Medical Association

Visual Evoked Response

Stimulation of the retina of the EYE with light causes changes in the electrical activity of the cerebral cortex (see BRAIN). These changes can be measured from outside the skull and can give valuable information about the state of the visual pathway from the retinal ganglion cells to the occipital cortex. Not only can it determine that function is normal, it can also help to diagnose some causes of poor VISION.... visual evoked response

Brainstem Evoked Response Audiometry

see auditory brainstem response audiometry.... brainstem evoked response audiometry

Cortical Evoked Response Audiometry

(CERA) an objective test of hearing that measures the electrical activity in the *cerebral cortex following sound stimulation.... cortical evoked response audiometry

Vestibular Evoked Myogenic Potential Test

(VEMP) a test used to measure the response of the *saccule. It is used in the diagnosis of *superior canal dehiscence syndrome, *Ménière’s disease, and other disorders of the inner ear.... vestibular evoked myogenic potential test

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