猫小脑间置核相邻神经元的功能关系。

Acta physiologica Polonica Pub Date : 1989-09-01
R Tarnecki, I Zurawska
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引用次数: 0

摘要

记录了猫小脑间位核(IP)对外周刺激的反应模式,并利用互相关技术研究了电生理学鉴定的神经元之间的相互作用。反应模式由潜伏期约8 ~ 22 ms的兴奋期和抑制期组成。观察到四种基本类型的神经元间连接:1)核内兴奋,2)来自共同来源的共享输入,3)核内抑制,以及4)刺激协同放电。共享输入出现在成对神经元的所有组合中,并延伸了从300微米到1000微米的距离。核内兴奋和抑制性突触连接主要发生在中间神经元和传出神经元的结合中。配对神经元的刺激协调放电几乎遍及整个间质核。
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Functional relations between neighboring neurons of nucleus interpositus of the cat cerebellum.

In the nucleus interpositus (IP) of the cat cerebellum the response patterns to peripheral stimulation were recorded, and the interactions between electrophysiologically identified neurons were studied with cross correlation techniques. The response patterns were composed of excitation appearing with latencies of about 8 to 22 ms., separated and succeeded by phases of inhibitions. Four basic types of interneuronal connectivities were observed: 1) intranuclear excitation, 2) shared input from a common source, 3) intranuclear inhibition, and 4) stimulus coordinated firing. Shared input appeared in all combinations of paired neurons and extended for a distance from 300 microns up to 1000 microns. Intranuclear excitation as well as inhibitory synaptic connection occurred mainly in combinations between interneurons and efferent neurons. Stimulus coordinated firing of paired neurons was found in almost the entire extent of the nucleus interpositus.

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