A MODEL FOR ACTIVE ELEMENTS IN COCHLEAR BIOMECHANICS
A MODEL FOR ACTIVE ELEMENTS IN COCHLEAR BIOMECHANICS
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DOI：
10.1121/1.393674
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发表时间：
1986-05-01
影响因子：
2.4
通讯作者：
KIM, DO
中科院分区：
文献类型：
--
作者：
NEELY, ST;KIM, DO
本文建立了耳蜗生物力学的线性数学模型。在这个模型中，有源元件对于模拟哺乳动物耳蜗的高灵敏度和尖锐调谐特性是必不可少的。活性成分旨在表示外毛细胞的运动作用；它们被认为是由耳蜗内淋巴的电化学能量提供动力，由外毛细胞立体纤毛的弯曲控制，并与耳蜗分割力学双向耦合的机械力发生器。这些有源元件在空间上分布，共同发挥耳蜗放大器的作用。耳蜗放大器的增益过大会引起自发振荡，从而产生自发耳声发射。
A linear, mathematical model of cochlear biomechanics is presented in this paper. In this model, active elements are essential for simulating the high sensitivity and sharp tuning characteristic of the mammalian cochlea. The active elements are intended to represent the motile action of outer hair cells; they are postulated to be mechanical force generators that are powered by electrochemical energy of the cochlear endolymph, controlled by the bending of outer hair cell stereocilia, and bidirectionally coupled to cochlear partition mechanics. The active elements are spatially distributed and function collectively as a cochlear amplifier. Excessive gain in the cochlear amplifier causes spontaneous oscillations and thereby generates spontaneous otoacoustic emissions.