BSR第5波潜時の蝸牛内決定因子について

概要

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Effects of inner ear pathologies on wave V latency of the auditory-evoked brain stem response (BSR) were studied in twelve selected cases of flat, low-frequency, severe high frequency and gradual high frequency sensory hearing losses.In cases of flat and low frequency sensory hearing losses (Ménière's disease), the latencies of wave V, at stronger intensities (10dB) than their thresholds, were approximately equivalent to those in normal hearing subjects. In cases of severe and gradual high frequency sensory hearing losses, the latencies of wave V were delayed compared to those in normal hearing subjects.Thus, the cochlear determinants of the wave V latency are the recruiting phenomenon in the transduction process and the travelling time to the cochlear portion responsible for the elicitation of the SBR.
耳鼻咽喉科臨床学会の論文