Evoked acoustic emissions from the human ear. I. Equipment and response parameters.
Evoked acoustic emissions from the human ear. I. Equipment and response parameters.
复制标题
从人耳诱发声发射。
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
C. Elberling
中科院分区：
文献类型：
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作者：
N. Johnsen;C. Elberling
使用信号平均技术，可以用外耳道中的探针从人耳记录受激声发射。使用声学点击刺激，由2 kHz的半个正弦波产生，极性对应于稀疏模式。为了客观地评估发射的延迟和配置，开发了许多不同的技术。以听力正常的受试者的录音为例，可以追踪到低于心理声学阈值的清晰反应。当摄入乙酰水杨酸引起感音神经性听力损失时，阈值升高，反应模式改变。对于鼓膜完整、听骨链移动的的聋耳，不能记录到任何反应。
Using signal averaging technique, stimulated acoustic emissions can be recorded from the human ear with a probe in the external ear canal. An acoustic click stimulus was used, produced by half a sinusoid of 2 kHz with the polarity corresponding to the rarefaction mode. A number of different techniques were developed in order to evaluate the latency and configuration of the emissions objectively. Recordings from a normal-hearing subject served as an example and a clear response could be traced down and below the psychoacoustic threshold. The threshold was elevated and the response pattern altered when a sensorineural hearing loss was induced by ingestion of acetylsalicylate. No response could be recorded from a deaf ear with an intact eardrum and a mobile ossicular chain.