Fig. 2: Confusion matrix of the MDS-UPDRS item scores assessed by the clinician and the best-selected model (Model-w-3D-tpi) for the left and right-hand finger tapping task in non-testing and testing dataset.

a Left-hand finger tapping task; b right-hand finger tapping task. The numbers in the confusion matrix represent the count of files. These results indicate that the estimations were generally reasonable and accurate, with only a few exceptions.