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通过小膜测量声学反射

Matan Hamra¹, Simona Tetin-Schneider², Shadi Shinnawi³

¹Faculty of Biomedical Engineering, Technion - Israel Institute of Technology, Haifa, Israel.

Audiology & neuro-otology

|April 4, 2024

概括

听力反射是中耳对大声响应的反应,观察到它会使耳膜振荡增加42%. 这项研究强调了一种观察中耳动态的新方法.

科学领域:

耳声波排放耳声波排放耳声波排放
中耳机械学中耳机械学
生物医学光学生物医学光学

背景情况:

声学反射是中耳对大声响应的积极反应,它修改了对内耳的声能转移.
了解这种反射对于诊断听力损失和中耳病理至关重要.

研究的目的:

观察声反射对耳膜振荡的影响.
为了确定在声反射过程中膜振荡的显著非线性增加.

主要方法:

干涉测谱光谱编码内镜被用于记录小膜振荡.
一个大声的200ms声学刺激被应用来引起声学反射.

主要成果:

在40至100ms之间测量了逐渐的声反射激活.
在反射激活期间,观察到波振荡幅度的线性增加为42%.

结论:

观察到的 tympanic 膜振荡与缓和的波器模型保持一致.
干涉计光谱编码内镜显示了研究中耳动态过程的潜力.

关键词:

声学反射是一种反射.光学干扰测量是一种光学干扰测量.频谱编码频谱编码 tympanic 膜带膜带膜带膜

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