具有延时作用的基底膜主动耦合模型

王如彬;周轶;张志康

振动与冲击 ›› 2011, Vol. 30 ›› Issue (12) : 49-53,7.

PDF(1574 KB)
PDF(1574 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (12) : 49-53,7.
论文

具有延时作用的基底膜主动耦合模型

  • 王如彬; 周轶; 张志康
作者信息 +

an active coupling model for basilar membrane with time-delay action

  • wang ru-bin; zhou yi; zhang zhi-kang
Author information +
文章历史 +

摘要

为了深入理解耳蜗的工作机制,本文研究了耳蜗中基底膜运动对不同频率和强度分辨能力的影响。针对原有的基底膜振动模型没有考虑外毛细胞在运动过程中由于自身运动所具有的不同速度对基底膜频率响应的影响,使得原有模型无法全面阐述外毛细胞的主动共振作用,为此我们引入了外毛细胞在增加基底膜频率选择性的机械过程中的延时特性。仿真计算结果表明,修正后的模型完全符合外毛细胞自身作用机制的生理特征。从一个新的角度诠释了外毛细胞运动对基底膜振动作用的贡献

Abstract

in order to deeply understand working priciple of cochlea. influences of motion of basilar membrane on resolving power for different frequencies and sound pressure levels were studied. because the original model for vibration of basilar membrane didn't consider influences caused by different moving speeds of outer hair cells in the course of their own motion on frequnency response of basilar membrane, it could not completely describe active respnance effect of outer hair cells. therefore, time-delay characteristic of outer hair cells in mechanical process of incereasing frequency selectivety of basilar membrane was induced. according to results of simulation calculation, the corrected model absolutely accorded with physiological features of mechanism of action of outer hair cells and it explained the effect of outer hair cells's motion on viration of basilar membrane.

关键词

基底膜运动 / 外毛细胞 / 主动耦合性 / 频率选择性 / 延时特性

Key words

motion of basilar membrane / outer hair cell / active coupling / frequency selectivity / time-delay characteristic

引用本文

导出引用
王如彬;周轶;张志康. 具有延时作用的基底膜主动耦合模型[J]. 振动与冲击, 2011, 30(12): 49-53,7
wang ru-bin;zhou yi;zhang zhi-kang. an active coupling model for basilar membrane with time-delay action [J]. Journal of Vibration and Shock, 2011, 30(12): 49-53,7

PDF(1574 KB)

Accesses

Citation

Detail

段落导航
相关文章

/