Brain stem electric response audiometry (BSERA).
Brain stem electric responses, recorded with external electrodes on vertex and ear lobes, are excellent for audiometry of young children. The vertex-positive wave with latency of 6 to 9 msec resembles closely the action potential of the auditory nerve, with the same high-intensity short-latency component and low-intensity long-latency component. Thresholds are reliable with filtered clicks at 1 000 Hz and higher. Practical advantages and theoretical limitations are summarized.
D000161:Acoustic Stimulation; D000328:Adult; D001299:Audiometry / Q000379:methods*; D001309:Auditory Threshold; D001933:Brain Stem / Q000502:physiology*; D002675:Child, Preschool; D004566:Electrodes; D006801:Humans; D012890:Sleep / Q000502:physiology