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首页> 外文会议>International Congress on Sound and Vibration >INCORPORATION OF AN ACTIVE FEEDBACK LOOP INTO THE 'SQUIRTING WAVE' MODEL OF THE COCHLEAR AMPLIFIER
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INCORPORATION OF AN ACTIVE FEEDBACK LOOP INTO THE 'SQUIRTING WAVE' MODEL OF THE COCHLEAR AMPLIFIER

机译：将主动反馈回路融入耳蜗放大器的“分频波”模型

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摘要

A model of the cochlear amplifier has recently been proposed, which involves symmetric Lloyd-Redwood (SLR) or "squirting" waves being propagated in the space between the tectorial membrane and the reticular lamina in the inner ear (Bell and Fletcher, 2004). The stiffness of these structures combined with the inertia of the fluid between them leads to a highly dispersive and slow wave, which appears to generate resonances in the correct range of characteristic frequencies. The waves are, however, highly damped by fluid viscosity. In this paper a model is proposed in which the motile action of the outer hair cells is incorporated into the dynamics. This provides an active feedback loop that can enhance the response of the system and thus drive fluid towards the inner hair cells, improving the overall sensitivity of the system and acting as a cochlear amplifier.
机译：最近提出了一种耳蜗放大器的模型，其涉及对称的Lloyd-Redwood（SLR）或“喷射”波在内耳（钟声和Fletcher，2004）中的凸膜和网状椎板之间的空间中传播。这些结构的刚度与它们之间的流体的惯性结合导致高度分散的和慢波，这似乎在正确的特征频率范围内产生共振。然而，波浪通过流体粘度高度阻尼。在本文中，提出了一种模型，其中外毛细胞的动机作用被纳入动态。这提供了一种有源反馈回路，其能够增强系统的响应，从而使流体朝向内毛电池驱动，从而提高系统的整体灵敏度并用作耳蜗放大器。

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