Table 1

	1^st Real & 2^nd Placebo group (n=8)	1^st Placebo & 2^nd Real group (n=7)	P
Mean age (years)	70.0 ± 8.4	76.0 ± 7.7	0.163*
Male (%)	2 (25.0)	2 (28.5%)	0.9999§
Length of illness (months)	78 ± 35	102 ± 62	0.6425*
L-DOPA (mg/day)	444 ± 129	364 ± 165	0.3794*
UPDRS total	52 ± 17	39 ± 16	0.0638*
MMSE	27 ± 4	27 ± 3	0.8582*
apathy scale	14 ± 7	19 ± 8	0.3846*
apathy patient	2(25%)	4(57%)	0.4385§
SDS (depression)	48 ± 7	44 ± 10	0.324*
110% MT intensity	69 ± 17	77 ± 8	0.3532*

Table 1: Baseline characteristics of 2 groups (procedure of stimulation), real placebo group and placebo real group with mean age, gender, length of illness, daily dosement of L-DOPA, total UPDRS on pre-stimulation, MMSE, apathy, depression and motor threshold intensity. Values are mean ± SD, UPDRSthe unified Parkinson’s disease rating scale, SDS :Zung Self-rating Depression Scale , MMSEmini-mental state examination, MT: Motor threshold *: Mann-Whitney U test, §: Fisher’s exact test.