Fig. 6.

Experiment 2: trial-by-trial behavior. A: trial-by-trial reach angles from a subject performing the dual-task rewarded trials are indicated by circles and nonrewarded trials by ×. Gray shaded region represents the reward region. B: failure points for subjects in the DualTask group; thick lines are the mean reach angle for each subject at each rotation angle, thin lines represent mean of each block, and colors go from hot to cold matching failure angles ranging from high to low. Vertical lines represent the last angle at which mean reach fell within rewarded region for each subject. Mean and SD of the angle of failure are shown.