Fig. 3.

Bar graphs for the task performance variables. Fig. 3A and B show bar graphs of average peak displacement for group comparison and medication condition in the patient group. Fig. 3C and D show bar graphs of average peak velocity and Fig. 3E and F show bar graphs of average integrated EMG (iEMG) in the movement initiation phase. Asterisks indicate significant group effects or medication effects at FDR-corrected p-value < 0.05. All error bars represent standard error (N_HC = 15, and N_PD = 15). Abbreviations: iEMG = integrated EMG, PD-ON = PD taking levodopa; PD-OFF = PD off levodopa overnight.