Fujita M, Nakamura R
Institute of Rehabilitation Medicine, Tohoku University School of Medicine, Miyaqi, Japan.
Percept Mot Skills. 1988 Dec;67(3):905-6. doi: 10.2466/pms.1988.67.3.905.
The effect of passive elbow motions on electromyographic reaction times (EMG-RTs) of the biceps brachii for elbow flexion and the triceps for elbow extension was investigated in 8 normal subjects, using a choice-RT task, in which the subject was uncertain about the response direction to perform until the arrival of response signal after the passive motion started. Compared to the static condition, choice EMG-RTs shortened only when the direction of passive and response movements was the same. It seems that passive motions act as prior information on direction of movement in the choice-RT task.
