Terakado Y, Yamaguchi T
Institute of Basic Medical Sciences, Tsukuba University, Ibaraki, Japan.
Neurosci Lett. 1990 Apr 6;111(3):292-6. doi: 10.1016/0304-3940(90)90277-g.
Activity of C5-C7 last-order interneurones, which were identified by antidromic invasion from the elbow flexor motor nuclei, was examined during fictive locomotion. Three groups of neurones were found: one showing no rhythmic modulation of activity (non-modulated neurones), another rhythmically active mainly in phase with the target motoneurones (modulated neurones of group 1), the other out of phase with them (modulated neurones of group 2). Activity pattern suggested group 1 and group 2 neurones distributing excitation and inhibition to flexor motoneurones, respectively. Location of neurones seemed to be differentiated as well, group 1 located dorsally, group 2 ventrally in the gray matter.
在模拟运动期间，对通过来自屈肘肌运动核的逆向侵入鉴定出的C5 - C7末级中间神经元的活动进行了检查。发现了三组神经元：一组显示活动无节律性调制（非调制神经元），另一组主要与目标运动神经元同步有节律地活动（第1组调制神经元），另一组与它们不同步（第2组调制神经元）。活动模式表明第1组和第2组神经元分别向屈肌运动神经元分布兴奋和抑制。神经元的位置似乎也有差异，第1组位于灰质背侧，第2组位于腹侧。
