Figure 3.

Experimental design. The experiment is structured as a 3 × 2 factorial design, consisting of two factors “finger tapping task” and “leg condition.” The former is divided into three levels, being left hand finger tapping (Left), right hand finger tapping (Right) and Idle, whose temporal representation is visualized in the “Finger tapping task” column. The “leg condition” factor is divided into two levels NoPert and Pert, which are represented, respectively, in the first and second rows of the table. To note that Rest is the resting period between tasks and that the visual cues of the tasks are randomly permuted within a session. Moreover, in the last column, the number of sessions performed for each experimental condition are visualized.