短声和短音诱导豚鼠SP-AP电位的比较

The Comparison of SP-AP Elicited by Tone Pip and Click in Guinea Pig

鲁海涛;龚树生;

1:华中科技大学同济医学院附属协和医院耳鼻咽喉科

2:首都医科大学附属北京同仁医院耳鼻咽喉科

摘要
目的比较短声和短音诱导的SP-AP电位。方法20只豚鼠分为2组,每组10只,分别采用短声和短音刺激,用圆窗电极记录SP-AP复合波。结果两种刺激声都能较好地诱导出SP-AP复合波。在1、2、4、8 kHz短音诱导的SP-AP波形较好,刺激声强度为100 dB SPL时,各频率短音诱导的SP波振幅分别为-13.56±8.7、-16.61±10.53、-10.13±14.75、-3.71±14.49μv;短声诱导的SP波振幅为-4.44±10.81μv。结论短音能成功诱导出SP-AP波,且具有频率特异性。
关键词
短声;短音;总和电位
基金项目(Foundation):
国家自然科学基金资助项目(30872858)
作者
鲁海涛;龚树生;
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鲁海涛龚树生