The clinical use of computer averaged electrophysiologic procedures f-or evaluation of the auditory system has received attention since the middle 1960s.
The Auditory Brain Stem Response Audiometry among the electric evoked response was described by Jewett(1970), Sohmer and Feinmesser(19 70), Jewett and Williston(1971), Hecox and Galambos (1974).
The Auditory Brainstem Responses are measure of electrical events generated along the auditory pathway that can be recorded from the scalp by far field averaging method.
This test is accurate and objective measure of auditory nerve and brain stem auditory pathway function because it is unaffected by subject state, sedatives, anesthetics, etc.
Result of Auditory Brain Stem Response in 30 normal hearing adults was obtained and it was compared with results of clinical vases of head trauma.
Normal value was obtained the absolute latencies of peak wave I, II, III, IV, V, interpeak latencies I-DI, Z-V, I-V, and interaural latency difference (ITO). The weakest click level that produces a wave V response established this threshold. Each wave latency varied systemically with click intensity. Latencies decreased as intensities decreased as intensities of stimuli increased.
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