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气导骨导值为多少正常
更新时间: 2020-11-05 00:00:00  

气骨导正常值是一个理想值,是以测量正常听力者的平均值作为一个参考基数,这一基数被设定为“0”,这就是理想正常值。一般临床上,考虑到测试听力室的噪音干扰,10分贝值以内也可以默认为基本正常值。

气导和骨导是声音从外界传入听觉中枢神经的两条通路。人体通过这两条通路来感知外界声音刺激,并传入到大脑听觉中枢,感知声音信息。电测听是主管测量气导和骨导的电子仪器,通过仪器声音源或震动刺激,被测试者被动做出反应,从而记录测试者的气导和骨导。

关键词: 多少 正常

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