e/Brainstem auditory evoked potentials

Information
has gloss	eng: Brainstem Auditory evoked potentials (BAEPs) are very small electrical voltage potentials which are recorded in response to an auditory stimulus from electrodes placed on the scalp. They reflect neuronal activity in the auditory nerve, cochlear nucleus, superior olive and inferior colliculus of the brainstem. They typically have a response latency of no more than six milliseconds with an amplitude of approximately one millivolt. Due to their small amplitude 500 or more repetitions of the auditory stimulus are required in order to average out the random background electrical activity. Although it is possible to obtain a BAEP to a pure tone stimulus in the hearing range a more effective auditory stimulus contains a range of frequencies in the form of a short sharp click.
lexicalization	eng: Brainstem auditory evoked potentials
instance of	(noun) the electrical response of the central nervous system produced by an external stimulus; "he measured evoked potentials with an electroencephalogram" evoked potential