Vivon M C, Goldstein R, Wolf K E, McFarland W H
Audiology. 1977 Jan-Feb;16(1):21-37.
The bases for variations of the middle-component (8-50 ms) auditory averaged electroencephalic response (AER) to clicks during the averaging process were explored by examining (1) the trend of the mean variance of the averaged waveform, (2) averaged waveforms generated by successive blocks of stimuli fractioned from a total of 512 stimuli, and (3) averaged waveforms generated by successive, but partially overlapping, blocks of responses recorded for a train of 512 stimuli. These analyses indicated no systematic changes in peak latencies or peak-to-peak amplitudes as stimulation progressed. Fluctuations in middle AER waveform are more readily explained by non-stationarity of the background electrophysiologic noise. Previously reported amplitude reduction with increasing stimulus number possibly can be explained by progressive reduction of the background noise on which the consistent-amplitude middle components are superimposed.
通过检查以下内容，探究了平均过程中对滴答声的中间成分（8 - 50毫秒）听觉平均脑电图反应（AER）变化的基础：（1）平均波形的平均方差趋势；（2）从总共512个刺激中分割出的连续刺激块所产生的平均波形；（3）针对512个刺激序列记录的连续但部分重叠的反应块所产生的平均波形。这些分析表明，随着刺激的进行，峰值潜伏期或峰峰值振幅没有系统性变化。中间AER波形的波动更容易用背景电生理噪声的非平稳性来解释。先前报道的随着刺激数量增加而出现的振幅降低，可能可以用背景噪声的逐渐降低来解释，一致振幅的中间成分叠加在该背景噪声上。
