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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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
Online AccessGet full text
ISSN0288-9781
1884-5797
DOI10.11289/otoljpn1981.16.144

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Abstract 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.
AbstractList 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.
Author Tsuchiya, K.
Wada, H.
Kujirai, K.
Nakagawa, C.
Nishimoto, Y.
Ogahara, N.
Sawaki, S.
Author_FL 中川 千尋
和田 広己
西本 喜胤
鯨井 和朗
小河原 昇
沢木 修二
土屋 幸造
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  fullname: Kujirai, K.
  organization: Department of Otolaryngology, Yokohama City University School of Medicine
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  fullname: Nishimoto, Y.
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DocumentTitleAlternate 音響反復負荷によるイエウサギか牛マイクロホン電位の変化
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References 2) 小川克二: Dihydrostreptomycinの聴器侵襲過程に関する実験的研究. 目耳鼻, 71; 89-104, 1968.
1) 白岩峯生: 家兎正円窓永久電極法の研究. 目耳鼻, 69; 631-660, 1966.
3) Davis, H.: Mechanoelectrical theory of cochlear action. Ann. of O. R. L. 67: 789, 1958.
4) Beagley, H. A.: Acoustic Trauma in the guinea pig. Acta Otolaryng., 60: 437, 1965.
References_xml – reference: 2) 小川克二: Dihydrostreptomycinの聴器侵襲過程に関する実験的研究. 目耳鼻, 71; 89-104, 1968.
– reference: 3) Davis, H.: Mechanoelectrical theory of cochlear action. Ann. of O. R. L. 67: 789, 1958.
– reference: 4) Beagley, H. A.: Acoustic Trauma in the guinea pig. Acta Otolaryng., 60: 437, 1965.
– reference: 1) 白岩峯生: 家兎正円窓永久電極法の研究. 目耳鼻, 69; 631-660, 1966.
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Snippet 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...
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Title Changes of Cochlear Microphonics (CM) in Rabbits following repeated noise exposure
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