Figure 5.

Between-subject variability in the motor adaptation and kinematics. A: between-subject variability in the level of adaptation (Adaptor: change in right hand use > 5%; nonadaptor: −5% < change < 5%; mal-adaptor: change < −5%). B: change in reaction time (%) between 3 subject groups. C: correlation between the change in left arm kinematics and the change in the right-arm usage. A significant positive correlation was observed between the changes in the reaction time of the left hand and the right arm under ×1.5 amplification condition; a negative correlation (trending toward significance; P = 0.058) was also observed between the vigor of the left arm and the right arm in ×2 amplification condition.