Figure 6.

Improvement in discrimination performance (green) of reversal task [i.e., the task in which monkey 1 (A) and monkey 2 (B) were required to switch reach direction compared with the basic task]. Linear interpolation curves and their equations (red) are shown. For comparison, linear interpolation curves and learning rates (blue) for the basic task are shown as well. Chance performance level is 0.5 (brown).