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Table 1. 

Clinical Characteristics of PD Patients

N
Age (years)
Handedness
Disease Duration (years)
UPDRSa
H&Y Stage
Medications
MMSE/BDI
51 58 L; S; A 29/6 
77 Lb 11 41 L; P 24/4 
63 11 38 L; P; S 30/12 
67 44 P; S; A; C 29/2 
68 47 L; E; Ro; Ar 29/22 
62 29 L; Ro; R 30/7 
N
Age (years)
Handedness
Disease Duration (years)
UPDRSa
H&Y Stage
Medications
MMSE/BDI
51 58 L; S; A 29/6 
77 Lb 11 41 L; P 24/4 
63 11 38 L; P; S 30/12 
67 44 P; S; A; C 29/2 
68 47 L; E; Ro; Ar 29/22 
62 29 L; Ro; R 30/7 

UPDRS = Unified Parkinson Disease Rating Scale; MMSE = Mini-Mental State Examination (out of a maximum score of 30), higher scores indicate more intact cognitive function; BDI = Beck Depression Inventory (out of a maximum score of 63), higher scores indicate a greater degree of depression.

Medications: A = amantadine; Ar = artane (trihexyphenidyl); C = coenzyme-q10; E = entacapone; L = carbidopa/levodopa (regular formulation); P = pramipexole; R = rasagiline; Ro = ropinirole; S = selegiline. Handedness: R = right; L = left.

aMotor Section of the Unified Parkinson's Disease Rating Scale. Average score across the 3 days of the experiment (out of a maximum score of 108). Higher scores indicate more severe motor impairment.

bTarget locations are mirror reversed and touch screen shifted to maintain same relation to screen.

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