抄録
In order to discuss the clinical utility of synchrony measure (SM), advocated by Fridman, a modified statistical test of the brain stem auditory response (component synchrony index=CSI) was designed and investigated. The CSI, which resembles to SM and represents the degree of reproducibility for group averages of ABR, was used as a statistical measure and was calculated from the first peak latency of 10 waves, which were derived from 10 group averages with filtering technique using FFT. The sensitivity of the test was demonstrated on 14 normal ABRs with different intensities (80, 50, 0dB HL) of stimulus from ipsilateral response. From the results, we emphasized that synchrony measure is useful for auditory brain stem evoked response detection.
