Hopf Amplification Originated from the Force-Gating Channels of Auditory Hair Cells

The sense of mammalian hearing exhibits nonlinear phenomena which are most significant to hearing function, such as nonlinear dynamic compression, nonlinear tuning and combination tones. These nonlinear phenomena are suggested to originate from the Hopf amplification within the cochlea, while the me...

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Bibliographic Details
Published inChinese physics letters Vol. 33; no. 12; pp. 146 - 150
Main Author 田霖 张艳平 龙长才
Format Journal Article
LanguageEnglish
Published 01.12.2016
Subjects
Hopf
听觉功能
哺乳动物
放大机制
毛细胞
通道
门控
非线性现象
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/33/12/128701

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Summary:The sense of mammalian hearing exhibits nonlinear phenomena which are most significant to hearing function, such as nonlinear dynamic compression, nonlinear tuning and combination tones. These nonlinear phenomena are suggested to originate from the Hopf amplification within the cochlea, while the mechanism underlying the Hopf amplification remains elusive. According to the experimental results of force-gating channel operation in hair cells, through a theoretic model, this work reveals a velocity-dependent open probability of force-gating channels in auditory hair cells, and a velocity-dependent active force produced by the force-gating channel operating, which makes sensors hear typical Hopf vibrators with nonlinear hearing phenomena.
Bibliography:11-1959/O4
The sense of mammalian hearing exhibits nonlinear phenomena which are most significant to hearing function, such as nonlinear dynamic compression, nonlinear tuning and combination tones. These nonlinear phenomena are suggested to originate from the Hopf amplification within the cochlea, while the mechanism underlying the Hopf amplification remains elusive. According to the experimental results of force-gating channel operation in hair cells, through a theoretic model, this work reveals a velocity-dependent open probability of force-gating channels in auditory hair cells, and a velocity-dependent active force produced by the force-gating channel operating, which makes sensors hear typical Hopf vibrators with nonlinear hearing phenomena.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/33/12/128701