Fig. 9.

Predictions of muscle synergy recruitment patterns across directions based on feedback gains identified from reconstructions in one preferred tuning direction. A: W₁ in subject 1, which had one preferred CoM acceleration tuning direction. B: CoM feedback reconstruction and predictions of discrete perturbations. Note that CoM acceleration direction is opposite platform direction. C: CoM feedback reconstruction and predictions of forward biphasic perturbations. D: CoM feedback reconstruction and predictions of backward biphasic perturbations. Numbers indicate r² (top) and VAF (bottom) values for predictions. Black arrows indicate the time and direction of premovement, shaded arrows indicate time and direction of movement, and solid circles indicate platform deceleration.