Dubuc R, Cabelguen J M, Rossignol S
Brain Res. 1985 Dec 16;359(1-2):375-8. doi: 10.1016/0006-8993(85)91455-6.
Single units recorded in the proximal stump of cut dorsal root filaments were found to antidromically discharge rhythmically during fictive locomotion in decorticate and paralyzed cats. Some units fired throughout the period of flexor or extensor nerve activity, whereas other units discharged near the transitional phases. Similar findings were made in acutely spinalized and paralyzed cats injected with L-DOPA, as well as in non-paralyzed decorticate cats walking on a treadmill. These results suggest that different types of primary afferents may be depolarized cyclically at different specific time in the step cycle by the central pattern generator for locomotion, and that this central control of the primary afferents may be involved in the modulation of the reflex transmission observed during locomotion.
在去皮质和瘫痪猫的模拟运动期间，发现记录于切断的背根细丝近端残端的单个神经元进行节律性的逆向放电。一些神经元在屈肌或伸肌神经活动的整个期间都放电，而其他神经元在过渡阶段附近放电。在注射了左旋多巴的急性脊髓损伤和瘫痪猫以及在跑步机上行走的未瘫痪去皮质猫中也得到了类似的结果。这些结果表明，不同类型的初级传入神经可能在运动的中枢模式发生器控制下，在步周期的不同特定时间被周期性去极化，并且初级传入神经的这种中枢控制可能参与了运动期间观察到的反射传递的调制。
