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[猫脊髓突触前抑制系统中调幅信号的传递]

[Transmission of amplitude-modulated signals in the presynaptic inhibition system of the cat spinal cord].

作者信息

Maksimenko L A

出版信息

Nauchnye Doki Vyss Shkoly Biol Nauki. 1987(6):59-64.

PMID:3040133
Abstract

In experiments with cats under the hexenal anesthesia it has been found that the transmission of information in multineuronic reflex ring carries out by frequency-dependent way. The optimum frequency subrange corresponds to each meaning of the modulation depth. Appearing signal distortions are accompanied by the phase lead of dorsal potentials with maximum on "resonance" frequency. The mechanism of presynaptic inhibition serves as control command amplifier. For all this the information signal amplitude grows, signal relation to noise increases, noise immunity of information transmission through the neuronic communication channel of multineuronic reflex ring improves considerably.

摘要

在对处于己烯醛麻醉状态下的猫进行的实验中发现,多神经元反射环中的信息传递是以频率依赖方式进行的。每个调制深度的含义都对应着最佳频率子范围。出现的信号失真伴随着背侧电位的相位超前,在“共振”频率处达到最大值。突触前抑制机制充当控制指令放大器。综上所述,信息信号幅度增大,信号与噪声的关系增加,通过多神经元反射环的神经元通信通道进行的信息传输的抗噪性显著提高。

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