THE SUSTAINED RESPONSE AND THE IMPULSE RESPONSE IN COCHLEA POTENTIALS
耳蜗电位的持续反应与其中单个脉冲的反应

This paper concerns the relationship between the sustained response evoked by impulse trains and the impulse response of the cochlea potential recorded in the round window of guinea pigs. Owing to the nonlinearity in the auditory system, every impulse stimulus had masking effect on the response to the impulse following it. So, there was no way to predict the sustained response to impulse trains if only according to a single impulse evoked response. Nevertheless, as the cochlea potentials were concerned, after the first five impulses the masking effect would saturate when the experimental animal was stimulated with a click train. So the steady state part of a sustained response can be expressed with the summation of the waveforms that were obtained by shifting a fully masked response to a click within a click train with intevals equal to the integer times of inter stimulus interval. This has been proved quantitatively in both time domain and frequency domain in this paper.