Fig. 1
Results of the MANCOVA (Tasks (free-viewing vs. search) by Groups (PD patients vs. age-matched controls) for the mean velocity of postural sway (head, upper back and lower back sway) and gaze shift velocity (cm.s−1) on the mediolateral/left-right direction. This figure shows the significant interaction between group (PD patient/age-matched control) and task (search/free-viewing). It also shows the significant main effect of Groups. The significant Tasks by Groups interaction effect and the significant main effect of Groups are shown with a star (*; p < 0.05).
