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大鼠损伤神经的三种诱发簇放电节律

段玉斌, 胡三觉, 菅忠, 段建红

第四军医大学神经科学研究所,西安(710032)；第四军医大学物理学教研室,西安(710032)

摘要

实验运用单纤维记录技术，观察了损伤神经起步点自发放电在改变[Ca~(2+)]。和veratridine作用下放电节律的变化。结果表明：在每一标本上，记录到的相同背景的自发放电在低与高Ca~(2+)浓度和veratridine的作用下，转化为三种不同类型的簇放电。结果提示，神经元放电的节律形式与刺激的性质相关，不同的节律形式可能携带着不同的神经信息。

关键词： 自发放电; 簇放电; 放电节律; 神经编码

Three types of induced burasting rhythm in rat injured nerves

Duan Yubin, Hu Sanjue, Jian Zhong, Duan Jianhong

Institute of Neuroscience, Fourth Military medical University,Xi^an(710032)；Department of Physics, Fourth Military Medical University,Xi^an(710032)

Abstract

Firing patterns of injured nerve fibers wererecorded using the single-fiber firing recording technique. Under the same background firing pattern, three types of bursting were induced separately be EGTA, veratridine or high [Ca~(2+)]. in the same type of nerve fibers. The results suggest that different firing patterns are related to different stimuli, which means that each firing pattern carries corresponding neural information.

Key words: Spontaneous firing;Bursting;;

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引用本文：

段玉斌, 胡三觉, 菅忠, 段建红. 大鼠损伤神经的三种诱发簇放电节律[J]. 生理学报 2002; 54 (4): .

Duan Yubin, Hu Sanjue, Jian Zhong, Duan Jianhong. Three types of induced burasting rhythm in rat injured nerves. Acta Physiol Sin 2002; 54 (4): (in Chinese with English abstract).