Figure 9.

Forelimb EMG responses to force field. A, Average normalized EMG activity of representative shoulder and elbow muscles that showed significant change of activity from prelearning to late field reaches to specified targets. Activity was aligned at movement onset (MO). These muscles also showed significantly different activities between feedback conditions. B, Mean modulation index of EMG activity as a function of the distance of muscle PD from LD and cosine fit for each feedback condition. Error bars: ±1 SE, p values are shown for significant comparisons between feedback conditions.