Changes of Cochlear Microphonics (CM) in Rabbits following repeated noise exposure

Fifteen normal rabbits were implanted with electrodes on the round window. They were exposed to noise (90 or 100 dB SPL of pure tones at 2 KHz) for two hours everyday. CM were measured immediately after each exposure and twenty-two hours later. The following results were obtained. (1) Three patterns...

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Bibliographic Details
Published inEar Research Japan Vol. 16; no. 1; pp. 144 - 146
Main Authors Kujirai, K., Wada, H., Nishimoto, Y., Ogahara, N., Sawaki, S., Nakagawa, C., Tsuchiya, K.
Format Journal Article
LanguageEnglish
Japanese
Published THE JAPAN OTOLOGICAL SOCIETY 1985
日本耳科学会
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ISSN0288-9781
1884-5797
DOI10.11289/otoljpn1981.16.144

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Summary:Fifteen normal rabbits were implanted with electrodes on the round window. They were exposed to noise (90 or 100 dB SPL of pure tones at 2 KHz) for two hours everyday. CM were measured immediately after each exposure and twenty-two hours later. The following results were obtained. (1) Three patterns of the change of maximum CM amplitude were recognized. these patterns were found to be dependent on the intensity and sensitivity of the tone stimulus. (2) It was useful for the estimation of the phase and the prognosis of noise induced deafness to examine the CM intensity function curve. Because the CM intensity function curve had the charictaristic patterns according to the advance of deafness.
ISSN:0288-9781
1884-5797
DOI:10.11289/otoljpn1981.16.144