[Effects of vision on tonic vibration response of a muscle or its antagonists in normal man (author's transl)].

In normal man, a vibratory stimulus applied to tendon of arm muscles can induce either a tonic motor response in the vibrated muscle or in its antagonists depending upon presence or absence of visual feedback from arm (perception of position vrs. perception of an illusive motion). Spinal motor effects of inputs from muscle spindle afferents elicited by vibration can be modified by the perceptive events experienced by the subject.