| 豚鼠耳蜗电图慢成分的研究 |
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| 引用本文： | 王树峰,刘淑芳,姬柏春,邓元诚.豚鼠耳蜗电图慢成分的研究[J].生物物理学报,1993,9(3):432-436. |
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| 作者姓名： | 王树峰 刘淑芳 姬柏春 邓元诚 |
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| 作者单位： | 白求恩医科大学生理学教研室 长春130021
(王树峰，刘淑芳，姬柏春)，北京市耳鼻咽喉科研究所 北京100730(邓元诚) |
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| 摘 要： | 选用0.8-150Hz的带通滤波,从豚鼠圆窗记录出一负一正相慢电位.实验结果表明.其对0.5kHz短音的反应阈为729dB nHL.较耳蜗电图快成分低38.27dB nHL.通过离断听觉传导径路不同水平对该电位的观察,表明它是毛细胞及听神经电反应的慢成分.而且可能受听觉传出神经的调控.
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| 关 键 词： | 圆窗 耳蜗电图 快成分 慢成分 |
RESEARCH ON SLOW WAVE COMPONENT OF ELECTROCOCHLEOGRAM RECORDED FROM ROUND WINDOW IN GUINEA PIGS |
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| Wang Shufeng Liu Shufang Ji Baichun.RESEARCH ON SLOW WAVE COMPONENT OF ELECTROCOCHLEOGRAM RECORDED FROM ROUND WINDOW IN GUINEA PIGS[J].Acta Biophysica Sinica,1993,9(3):432-436. |
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| Authors: | Wang Shufeng Liu Shufang Ji Baichun |
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| Institution: | Wang Shufeng Liu Shufang Ji Baichun (Dept. of Physiology N. Bethune Univ. of Med. Sci.)Deng Yuanchen (Beijing Institute of Otorhinolaryngology) |
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| Abstract: | Through the bandpass filter 0.8-150Hz. a slow wave component of electrocochleogram (SWC-ECochG) oesp nsed to the sounds of low frequency was recorded from round window in guinea pigs. The experimental results indicated that the responsive threshold of SWC -ECochG elicited by 0.5kHz tone burst was 7.29dB nHL. it was lower than that of Fast Wave Component of EcochG by 38.27dB nHL. We observed changes of SWC-ECochG after cutting off audiotory pathway at various level, which suggest that SWC - ECochG is possibly composed of the slow component of electric responses of acoustic nerve and hair cells. and may be regulated by efferent auditory pathway. |
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| Keywords: | Round window Fast Wave component of ECochG Slow wave component of ECochG |
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