Supplementary Figure 3: Evolution of performance over training.

Behavioral performance measures are shown as a function of the cumulative number of VIS+ICMS trials performed (training and testing) for Monkey D. The data, collected during testing sessions, were smoothed for clarity (Gaussian window with standard deviation of 2.8 training sessions, translating to approximately 2,500 training trials for Monkey D). The visual coherence on training trials was decreased across training sessions (indicated by gray bars at the bottom of the figure and vertical gray lines at the transitions). The left, thin green line denotes the onset of ICMS–only trials, where target sizes were temporarily larger than in the other trial conditions; the right, thick green line denotes the beginning of ICMS-trials with targets of standard size. (a) percent correct trials; (b) number of movement segments measured online error corrections; (c) movement time for the trial is normalized by the initial distance to the reach target; (d) path length, normalized as in c. See Supplementary Table 1 for additional details on the training and testing schedule.