Table 2. Demographics for subjects included for the first set of analysis, which compared controls and PD patients in on-treatment session.

MDS-UPDRS score for PD patients are the mean of 21 patients, because we could not obtain MDP-UPDRS in one PD patient for one of their two sessions (the on-DBS session).

Subject Group	Control	PD On-treatment
Analyzed subjects	24	22
Age	65.0 (7.7 SD)	66.5 (8.0 SD)
MDS-UPDRS	NA	13.6 (7.6%)