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[突触前控制系统对调频信号的编码]

[The coding of frequency-modulated signals by the presynaptic control system].

作者信息

Maksimenko L A

出版信息

Izv Akad Nauk SSSR Biol. 1990 Jul-Aug(4):571-8.

PMID:2177065
Abstract

Mechanism of presynaptic inhibition transforms frequency-modulated sensory signals amplitude-frequency-modulated reaction of potentials of dorsal side of spinal cord. Frequency regulation is characterized by a wide threshold range which is several times higher than amplitude regulation mode. Neuromuscular system of motor apparatus is a kind of impulse-frequency detector. The system isolates analogous amplitude changes of mechanic movements by demodulation of frequency-modulated dorsal potentials. The detection mode is facilitated by preliminary transformation.

摘要

突触前抑制机制将频率调制的感觉信号转化为脊髓背侧电位的幅度-频率调制反应。频率调节的特点是阈值范围很宽，比幅度调节模式高出几倍。运动装置的神经肌肉系统是一种脉冲频率检测器。该系统通过对频率调制的背侧电位进行解调来分离机械运动的类似幅度变化。初步转换有助于检测模式。

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