轴突分叉点位置计算法适用性的分析

首都医科大学学报 ›› 1990, Vol. 11 ›› Issue (3): 168-173.

轴突分叉点位置计算法适用性的分析

吕国蔚, 何国瑞, 李菁锦

首都医学院神经生物学研究室

收稿日期:1989-11-20 修回日期:1900-01-01 出版日期:1990-07-15 发布日期:1990-07-15

Analysis of the Feasibility of Calculation Method forthe Estimation of Axonal Branching Point

Lu Cuowei, He Guorui, Li Qingjin

Department of Neurobiology, Capital Institute of Medicine

Received:1989-11-20 Revised:1900-01-01 Online:1990-07-15 Published:1990-07-15

摘要/Abstract

摘要： 某些中枢神经元通过分叉轴突向两个以上核团投射。轴突分叉点的位置通常由计算轴突主干传导时间予以估测。但是,本工作用该法的4个公式计算细胞内或细胞外记录到的数据未能得到一致和可信的数值。结果提示,计算法的原理是不合理的,并至少对在细胞内或细胞外记录条件下估测轴突分叉点是不适用的。

关键词: 双投射神经元, 轴突分叉点, 逆向反应, 单位记录

Abstract: Some central neurons project to two or more target nuclei via their branched axons. The location of bifurcation points is usually estimated by calculation of conduction time spent in their parent axons. Howevre, in the present study, no consistant and reliable estimates of the location were shown, when four formulae were used to calculate the data obtained from intra- and extra-cellular recording. The results indicate that the calculation method is inapporpriate in its rationale and not applicable for the evaluation of branching points at least in case of unitary recording fron the ceil body.

Key words: double projection neuron, axonal branching point, antidromic response, unitary recording

吕国蔚;何国瑞;李菁锦. 轴突分叉点位置计算法适用性的分析[J]. 首都医科大学学报, 1990, 11(3): 168-173.

Lu Cuowei;He Guorui;Li Qingjin. Analysis of the Feasibility of Calculation Method forthe Estimation of Axonal Branching Point[J]. Journal of Capital Medical University, 1990, 11(3): 168-173.

[1]	孟卓;吕国蔚. 大鼠脊孤束-背索突触后神经元的微细结构[J]. 首都医科大学学报, 1992, 13(4): 269-272.
[2]	杨存田;徐群渊;李楠;王海燕;蔡青;吕国蔚;何国瑞. 脊髓双投射神经元的形态学观察[J]. 首都医科大学学报, 1987, 8(3): 170-174.