正常听力成人40Hz多频听性稳态反应的研究

40 Hz Multiple Auditory Steady-state Responses in Adults with Normal Hearing

黄运甜;莫玲燕;

1:西门子听力仪器(苏州)有限公司

2:首都医科大学附属北京同仁医院耳鼻咽喉-头颈外科中心

摘要
目的研究正常听力成人40Hz多频听性稳态反应(40Hz多频ASSR)的基本特性,探讨其可能的临床应用价值。方法对15例正常听力成人(男4人,女11人,年龄19~37岁,平均22.5±4.1岁,双耳各频率气导纯音听阈均在20dBHL以内)进行40Hz多频ASSR测试,刺激信号是载波频率为0.5、1、2和4kHz的调幅调制音,调制频率左耳为32、40、56、64Hz,右耳为34、42、58、66Hz,双耳由ER-3A插入式耳机8个频率同时给声。应用方差分析法对各频率的阈值、40dBHL刺激强度下的反应幅值进行统计学分析。结果 40Hz多频ASSR在0.5、1、2、4kHz的阈值分别为39.23±10.72、35.67±8.17、36.09±8.39和38.26±11.54dBHL,各频率间差异无统计学意义(P>0.05);在40dBHL刺激强度下0.5和1kHz的幅值显著高于2和4kHz。结论 40Hz多频ASSR的阈值各频率之间没有显著性差异,在相同刺激强度下其反应幅值低频高于高频;40Hz多频ASSR对听阈的评估有一定的参考价值。
关键词
正常成人;40Hz多频听性稳态反应
基金项目(Foundation):
作者
黄运甜;莫玲燕;
参考文献

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黄运甜莫玲燕