不同听觉感受器器官中同步滤波器的比较。

A comparison of synchronization filters in different auditory receptor organs.

作者信息

Weiss T F, Rose C

机构信息

Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge.

出版信息

Hear Res. 1988 May;33(2):175-9. doi: 10.1016/0378-5955(88)90030-5.

DOI:10.1016/0378-5955(88)90030-5

PMID:3397327

Abstract

Measurements of the frequency dependence of synchronization of cochlear nerve fibers obtained in different auditory receptor organs are compared. These synchronization filter-functions are lowpass filter-functions and differ primarily in corner frequencies which we estimate to be (in kHz): 2.5 (cat), 1.1 (guinea pig), 0.48 (alligator-lizard tectorial fibers), 0.42 (tree frog), and 0.34 (alligator-lizard free-standing fibers). Some of this variation in corner frequency can be explained by temperature-dependent lowpass-filter mechanisms with a temperature factor of 2.6-3.3 for a change in temperature of 10 degrees C. However, factors in addition to temperature must be involved in producing the differences in corner frequency between cat and guinea pig fibers and between tectorial and free-standing fibers in the alligator lizard.

摘要

比较了在不同听觉感受器器官中获得的耳蜗神经纤维同步频率依赖性的测量结果。这些同步滤波函数是低通滤波函数，主要区别在于截止频率，我们估计其（以千赫兹为单位）分别为：2.5（猫）、1.1（豚鼠）、0.48（短吻鳄蜥蜴盖膜纤维）、0.42（树蛙）和0.34（短吻鳄蜥蜴独立纤维）。截止频率的这种变化部分可以用温度依赖的低通滤波机制来解释，温度每变化10摄氏度，温度因子为2.6 - 3.3。然而，除了温度之外，必定还有其他因素导致猫和豚鼠纤维之间以及短吻鳄蜥蜴盖膜纤维和独立纤维之间截止频率的差异。