Table 1. Clinical characteristics of Parkinson's disease patients and age-matched of controls.

Patient ID	Age (years)	Sex	Hand-edness	Disease duration (years)	UPDRS	Action Tremor Score	H & Y Stage	Medications	Control ID	Age (years)
1PD	50	M	R	8	59.5	0	3	Lev; LevR; Sel; Ent	1C	50
2PD	63	F	R	10	22.0	0	2	Lev; Pr; Pr	2C	63
3PD	66	F	R	10	33.5	1	2	Pr; Sel; Am	3C	66
4PD	67	M	R	9	41.5	1	2	Lev; Ent; Art	4C	69
5PD	68	F	R	11	46.5	0	3	LevR; Pr; Ent; Ras	5C	69
6PD	71	M	R	25	55.5*	1	3	LevR; Ent; Sel; Pr; Am	6C	71
7PD	71	M	R	15	34.0	1	3	LevR; Pr; Am	7C	71
8PD	72	M	R	15	38.5	1	2	St; Sel; Rop	8C	73
9PD	76	M	R	10	34.5	1	2	Lev; Pr	9C	73
10PD	82	M	R	6	42.0	1	3	Lev; LevR; Sel; Am	10C	77

The table shows the clinical characteristics of the Parkinson's disease patients. Duration is years since first remembered parkinsonian symptom. UPDRS: United Parkinson's Disease Rating Scale, Motor section (range from 0–108). Higher scores indicate greater impairments. UPDRS score prorated to scale ending at 108. Medication codes are as follows: LevR (Carbidopa/levodopa sustained release); Lev (Carbidopa/levodopa, regular formulation); Pr (Pramipexole); Sel (Selegiline); Ent (Entacapone); Br (Bromocriptine); Rop (Ropinirole); St (Stalevo (Carbidopa/levodopa/entacapone)); Ras (Rasagiline); Am (Amantadine); Rot (Rotigotine); Art (Artane (trihexyphenidyl)). *: left arm could not be tested due to injury.