Fig. 4

DRT effects on UPDRS scores and KINARM performance. a The change in UPDRS scores for bradykinesia, rigidity, and posture with DRT in 20 subjects that displayed a minimal clinical difference (* p < 0.001). b The correlation between the change in KINARM cumulative score (calculated from Z-scores for selected parameters) and the change in UPDRS cumulative score for bradykinesia, rigidity, and posture due to the administration of DRT for all subjects. The open white circles represent the 6 subjects that didn’t meet the criteria for minimal clinical difference. c Correlation between the change in the number of distractor hits and the change in UPDRS cumulative scores due to the administration of DRT