FIGURE 1.
Integrated, full-wave rectified EMG and the vertical Jaw position trace obtained from Subject D during voluntary oscillation of the aw at a moderate rate. Moderately rigid coupling between the homologous pair (left and right medial pterygold) contrasts with the weaker coupling among synergists (each of the medial pterygold recordings with right masseter) and the reciprocal coupling among the antagonistic pairs (medial pterygold or masseter with digastric).