Figure 1.

Overview of experimental sessions. Each participant completed a training protocol consisting of a baseline session (DAY0), 3 d of practice (DAY1, DAY2, and DAY3) and a DR test. DR consisted of a blocked (DR-B) and random (DR-R) test, which was counterbalanced across participants. Whereas no feedback was provided during DAY0 and DR, a feedback protocol in which 50% of the trials were provided with cFB and 50% of the trials with atFB was used during the training sessions. To assess task-related brain activity, fMRI was acquired during early (DAY1) and late (DAY3) phases of acquisition as well as during DR.