Table 1.

Demographic and clinical data

	Controls (N = 25)	PD-On (N = 24)	PD-Off
Age (years)	57.0 ± 2.1	60.2 ± 1.6
Sex (female/male)	13/12	7/17
Education level (seven-point scale)	5.9 ± 0.3	5.2 ± 0.6
Disease duration (years)		11.4 ± 1.3
Dopaminergic daily dose (mg/d)		1148 ± 86
UPDRS-III motor score		11.7 ± 1.7	32.8 ± 3.2
Starkstein apathy score	5.2 ± 0.7	8.9 ± 0.8	14.3 ± 1.3
MADRS depression score	2.9 ± 0.7	5.9 ± 1.0
MMSE cognitive score		27.3 ± 1.3
Mattis dementia score		136.6 ± 14.3
Cued recall memory score		43.8 ± 5.0

MADRS, Montgomery and Asberg depression rating scale; MMSE, Mini Mental State Examination.