title: Intermittent transmission in the reciprocal inhibitory pathway from flexor muscle Ia afferents to extensor motoneurons in man.
abstract: Variations in soleus reflex EMG following single conditioning stimuli to tibialis anterior Ia afferents were quantified in man by means of a simple index of inhibition. Probability of test reflex depression was greatly increased at conditioning-testing intervals of 1-4 ms, although the magnitude of depression was small. These findings are consistent with the existence of intermittent but functionally effective Ia reciprocal inhibitory transmission onto soleus motoneurons.
mesh_terms: D000293:Adolescent; D000328:Adult; D000344:Afferent Pathways / Q000502:physiology*; D003214:Conditioning, Classical; D004576:Electromyography; D006801:Humans; D008875:Middle Aged; D009046:Motor Neurons / Q000502:physiology*; D009132:Muscles / Q000294:innervation*; D009435:Synaptic Transmission