Degtiarenko A M, Zavadskaia T V
Neirofiziologiia. 1991;23(2):151-60.
Rearrangement of the locomotor generator activity evoked by phasic electrical stimulation of different descending systems has been investigated on decerebrated immobilized cats. The rearrangement heavily depends on the stimulation phase. A maximal increase of the locomotor cycle duration by electrical stimulation of the Deiters nucleus takes place in the end of an "extensor" phase. Stimulation of the Deiters nucleus during the flexor phase decreases the locomotor cycle duration. A maximal increase of the locomotor cycle duration by electrical stimulation of the red nucleus, pyramidal tract and reticular gigantocellular nucleus takes place in the first half of a "flexor" phase. Electrical activation of these descending pathways during the flexor phase promotes an increase in intensity of this phase and a decrease in intensity of the "extensor" phase. Electrical activation of the Deiters nucleus increases intensity of the extensor phase and decreases that of the "flexor" phase. Possible principles of the suprasegmental correction of the locomotor generator activity are discussed.
在去大脑固定的猫身上，研究了不同下行系统的相位电刺激所诱发的运动发生器活动的重新排列。这种重新排列很大程度上取决于刺激相位。通过刺激Deiters核进行电刺激，运动周期持续时间的最大增加发生在“伸肌”相末期。在屈肌相刺激Deiters核会缩短运动周期持续时间。通过刺激红核、锥体束和网状巨细胞核进行电刺激，运动周期持续时间的最大增加发生在“屈肌”相的前半段。在屈肌相期间，这些下行通路的电激活促进该相强度增加，“伸肌”相强度降低。刺激Deiters核会增加伸肌相强度，降低“屈肌”相强度。讨论了运动发生器活动的节段上校正的可能原理。
