Table 2. Demographic and clinical characteristics of PD and control group for the long-term retention session.

	PD (n = 6)			CG (n = 7)
Variable	M	SD	Range	M	SD	Range
Age	62	11.33	46–79	68	9.1	53–80
Duration of PD in years	5	0.9	4–6
UPDRS motor score	24	6.7	16–44
H&Y			2–3
MMSE	28.8	1.5	26–30	28	1.3	26–30
Medication (mg):
Levodopa (n = 6)	439.6	247.8	187.5–900
Carbidopa (n = 6)	105.8	61.5	47–225
Entacapon (n = 2)	900	424.3	600–1200