Figure 3

Statistical comparisons between the extracted parameters of individuals with PD and healthy controls. (a) Percentage of whispered trials across conditions where whispering was required. (b–e) Errors per second, mean reaction time, mean syllabic rate, and rhythmic structure consistency across trials, respectively, across Normal and Reduced feedback conditions. In all panels, colors identify the different groups; dots represent individual subjects (blue: Ind. with PD, purple: controls), bars represent the standard deviation, triangles represent the mean values, and *p < 0.05.