A mathematical analysis of the peripheral auditory system mechanics in the goldfish (Carassius auratus)
A mathematical analysis of the peripheral auditory system mechanics in the goldfish (Carassius auratus)
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DOI：
10.1121/1.1286099
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发表时间：
2000-09-01
影响因子：
2.4
通讯作者：
Hastings, MC
中科院分区：
文献类型：
--
作者：
Finneran, JJ;Hastings, MC
本文用集总参数力学和流体系统模型分析了金鱼外周听觉系统的动态响应。鱼鳔被视为一个两个自由度的机械系统，由两个耦合的质量弹簧阻尼器的安排。使用允许拉伸和滑动的前游泳囊外图尼卡膜的现象学分析将游泳囊耦合到韦伯听小骨。分析球囊的特点，只有一个自由度，对应于睫状束的取向方向。球囊的输入包括横管流体运动和动物头部的运动（假设与局部声粒子运动相匹配）。所需的系统方程的机械性能估计从已发表的文献，直接测量，曲线拟合实验数据的：运动的鱼鳔。结果表明，韦伯装置在整个听觉带宽上对听力有显著影响，而不仅仅是在较高频率下，并且球囊在大约300 Hz以上起位移传感器的作用。(C)2000年美国声学学会。【S0001-4966（00）02207-4】。
The dynamic response of the goldfish peripheral auditory system has been analyzed using lumped-parameter mechanical and fluid system models for the swimbladder, Weberian apparatus, and saccule. The swimbladder is treated as a two degree-of-freedom mechanical system consisting of two coupled mass-spring-damper arrangements. The swimbladder is coupled to the Weberian ossicles using a phenomenological analysis of the anterior swimbladder tunica externa which permits both stretching and sliding. Analysis of the saccule features only a single degree of freedom, corresponding to the direction of orientation of the ciliary bundles. Inputs to the saccule consist of the transverse canal fluid motion and the motion of the animal's head (assumed to match the local acoustic particle motion). Mechanical properties required for the system equations were estimated from published literature, direct measurements, and curve fits to experimental data for the: motions of the swimbladders. The results indicate that the Weberian apparatus has a significant impact on hearing ability over the entire auditory bandwidth, not just at higher frequencies, and that the saccule functions as a displacement sensor above approximately 300 Hz. (C) 2000 Acoustical Society of America. [S0001-4966(00)02207-4].