Figure 2.

Schematic of the experiment.

(A) Example of training setting. Subjects were instructed to repeatedly push the four numbered response buttons as accurately and quickly as possible using the non-dominant (left) hand during the task block.

(B) Composition of the training paradigms. One training session was composed of display for 10 seconds, training for 4 minutes 50 seconds, and rest for 3 minutes, repeated five times.

(C) Timetable of motor training and functional MRI (fMRI) experiments in the training group.