衍生波段听觉脑干反应:由窄带掩饰器决定的耳贡献
David R Stapells1, Maxine R Fok1
1School of Audiology & Speech Sciences, University of British Columbia, Vancouver, Canada.
International journal of audiology
|June 29, 2023
概括
高通噪声/衍生响应 (HP/DR) 技术准确评估狭窄的耳区域. 这种方法通过听觉脑干反应 (ABR) 来识别尾内的特定频段.
科学领域:
- 听力学 听力学是指听力学.
- 神经科学是一个神经科学.
- 听力科学 听力科学
背景情况:
- 听觉脑干反应 (ABR) 对于评估听觉通路功能至关重要.
- 高通噪声/衍生响应 (HP/DR) 技术提供了一种探测特定耳区域的方法.
- 了解ABR的频率特异性对于诊断听力障碍至关重要.
研究的目的:
- 确定由听觉脑干反应 (ABR) 代表的精确的耳频率区域.
- 为了验证高通噪声/衍生响应 (HP/DR) 技术在频率特定ABR评估中的有效性.
主要方法:
- 使用了HP/DR技术,使用过的高通噪声掩蔽器 (8000, 4000, 2000, 1000, 500 Hz).
- 获得了三个衍生的响应频段:DR4000-2000,DR2000-1000和DR1000-500.
- 分析波V振幅和延迟变化,以响应窄带噪声掩蔽器,以确定贡献频率.
主要成果:
- 衍生波段中心频率被发现接近较低的高通切断频率.
- 获得的响应带宽大约为0.5-1八度宽.
- 结果表明中心频率在大多数衍生波段的低高通频率的0.5八度之内.
结论:
- 惠普/DR技术是评估狭窄耳区域的有效方法.
- 该技术允许评估耳区域的狭窄程度为1.0octave.
- HP/DR在尾管内提供频率特定的信息,有助于听觉评估.
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