Harrison P J, Riddell J S
Department of Physiology, University College London.
Q J Exp Physiol. 1989 Jan;74(1):79-82. doi: 10.1113/expphysiol.1989.sp003243.
An estimate has been deduced for the percentage of motoneurones in the lumbosacral spinal cord inhibited by single interneurones mediating group I non-reciprocal inhibition. The estimate is derived from data for the percentage of interneurones discharged, and percentage of motoneurones inhibited, by the same group I afferents. These experimental data are compared with theoretical curves for the percentage of motoneurones in which inhibition would be expected following discharges in various numbers of interneurones, for different values of projection frequency. It is estimated that each interneurone projects to less than 5% of target motoneurones.
已推导得出介导I类非交互抑制的单个中间神经元对腰骶脊髓运动神经元抑制百分比的估计值。该估计值来自于同一I类传入纤维放电的中间神经元百分比和被抑制的运动神经元百分比的数据。将这些实验数据与理论曲线进行比较，这些理论曲线表示在不同投射频率下，不同数量的中间神经元放电后预期会被抑制的运动神经元百分比。据估计，每个中间神经元投射到少于5%的目标运动神经元。
