Stapells D R, Picton T W
Ear Hear. 1981 Jan-Feb;2(1):20-9. doi: 10.1097/00003446-198101000-00006.
The brainstem response to brief tones contains a large vertex-positive component. If high-pass filter settings above 20 Hz are used, particularly with high rolloff slopes, the morphology of the response changes so that a vertex-negative wave becomes the most prominent component of the response. The amplitude of the response is unaffected by stimulus presentation rates of up to 35/sec. Tones with longer rise times have greater frequency specificity, but at rise times of greater than 5 msec, the brainstem response becomes very small. At high intensities, regardless of the rise time, the response to tones is not completely frequency specific, and notched noise masking should be used to obtain frequency-specific responses.
脑干对短声的反应包含一个大的顶点正向成分。如果使用高于20Hz的高通滤波器设置，特别是具有高滚降斜率的设置，反应的形态会发生变化，使得顶点负向波成为反应中最突出的成分。反应的幅度不受高达35次/秒的刺激呈现速率的影响。上升时间较长的短声具有更高的频率特异性，但当上升时间大于5毫秒时，脑干反应会变得非常小。在高强度下，无论上升时间如何，对短声的反应都不是完全频率特异性的，应使用带通噪声掩蔽来获得频率特异性反应。
