Auditory brain stem evoked response in normal neonates and infants

Abstract

Auditory brainstem evoked responses (ABER) were recorded to provide normative data regarding the latency values, brainstem conduction times in term neonates and infants up to 24 months of age. The mean latency for wave I - 1.86 +/- 0.11 m sec, wave III - 5.11 +/- 0.31 m sec, wave V - 7.10 +/- 0.30 m sec progressively decreased at birth to wave I - 1.64 +/- 0.17 m sec, wave III - 4.40 +/- 0.27 m sec, wave V - 6.15 +/- 0.21 m sec at 12 months of age by stimulus strength of 75 decibels at a rate 20 clicks/sec. Interwave conduction times improved to I-III - 2.76 +/- 0.29 m sec, I-V - 4.51 +/- 0.29 m sec, III-V - 1.75 +/- 0.17 m sec at 12 months from I-III - 3.25 +/- 0.26 m sec, I-V - 5.23 +/- 0.23 m sec, III-V - 1.99 +/- 0.35 m sec at birth.