The Transmission Characteristics of the Travelling Wave Studied by the Frequency-specific Whole-nerve Response
1980 Volume 23 Issue 2 Pages 73-78
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1980 Volume 23 Issue 2 Pages 73-78
The averaged whole-nerve response (AP) was recorded from the round window of the guinea pig. The sound stimulus was the downward shift of the frequency of a pure tone accompanied with the amplitude increase, and it has been proved that this stimulus could elicit the frequecy-specific response.
The peak latencies of the APs for 250Hz, 500Hz, 1kHz, 2kHz and 4kHz were studied in various intensities of each tone and it became evident that the latency decreased almost exponentially as the frequency of the stimuli increased at an octave step.
The distance from the round window to the newly activated area of the basilar mambrane by the frequency shift could be expressed as an exponential function of the peak latency of AP, and the coefficient of the function was obtained by the use of microcomputor.
