[The influence of learning on the "setting" of the spinal apparatus of reciprocal inhibition prior to voluntary motion].
The subjects performed daily for nine days from 200 to 250 single movements, namely a rapid dorsal flexion of the foot. Recording of the EMG of antagonist muscles and testing by the single and paired H-reflexes method has revealed three phenomena of learning: greater ratio of electrical activity (EA) of antagonist muscles owing to the enhanced agonist's EA; stronger reciprocal inhibition of the antagonist motoneurone nucleus at the beginning of the movement; enhanced supraspinal "tuning" of the spinal apparatus of the antagonist reciprocal inhibition before the beginning of the movement. It is suggested that the third phenomenon of learning underlies two phenomena.
D006181:H-Reflex; D006801:Humans; D007858:Learning / Q000502:physiology*; D009043:Motor Activity / Q000502:physiology*; D009046:Motor Neurons / Q000502:physiology; D009132:Muscles / Q000502:physiology*; D009433:Neural Inhibition; D011930:Reaction Time; D013116:Spinal Cord / Q000502:physiology*
Vliianie obucheniia na "nastroitku" spinal'nogo apparata retsiproknogo tormozheniia pered proizvol'nym dvizheniem