1995 Volume 38 Issue 6 Pages 773-779
The influence of noise induced temporary threshold shift (NITTS) on EOAE was investigated. The high intense sound exposure with 100dB white noise and 90dBnHL 1kHz pure tone comparatively was done. Amplitude of EOAE evoked with 1kHz tone burst was recorded as parameter. There was no significant change on amplitude of the EOAE, including for seconds soon after 100dB white noise exposure. On the other band, after exposure to 90dBnHL 1kHz pure tone, the amplitude reduction of EOAE was recognized among the subjects who had the TTS for a few minutes (so called ordinary TTS). These results suggested that there was a close relation between ordinary TTS and reduction of EOAE amplitude.
