COCHLEAR MICROMECHANICS - A PHYSICAL MODEL OF TRANSDUCTION
COCHLEAR MICROMECHANICS - A PHYSICAL MODEL OF TRANSDUCTION
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DOI：
10.1121/1.385198
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发表时间：
1980-01-01
影响因子：
2.4
通讯作者：
ALLEN, JB
中科院分区：
文献类型：
--
作者：
ALLEN, JB
毛细胞转导的机械作用，特别是机械测量调谐基底膜运动和神经测量调谐之间的差异，被认为是。这两个措施之间的差异似乎占了一个特定的，物理动机，微观力学模型。该模型产生频谱0，其被识别为耳蜗转导的第二滤波器。对于高频光纤，这个0存在于低于CF（特征频率）的固定频率比处;对于具有低频CF的光纤，0看起来比CF更快地到达0频率。提出了一个力学模型。讨论了耳蜗力学非线性的一种可能的具体物理实现。非线性模型是基于外毛细胞静纤毛刚度的动态变化。
The mechanical action of hair-cell transduction, specifically the discrepancy between mechanically measured tuning of basilar membrane motion and neurally measured tuning, is considered. The difference between these 2 measures appears accounted for by a specific, physically motivated, micromechanical model. This model gives rise to a spectral 0, which is identified as the 2nd-filter of cochlear transduction. For high-frequency fibers this 0 resides at a fixed frequency ratio below CF (characteristic frequency); for fibers having low-frequency CF the 0 appears to go to 0 frequency faster than CF. A mechanical model is presented. A possible specific physical realization for the nonlinearity of cochlea mechanics is discussed. The nonlinear model is based on dynamical variations in outer hair cell stereocilia stiffness.