Table 1 Demographics and neuropsychological data

Gender, n (M/F)

24(17/7)

20(10/10)

20(11/9)

6.000

0.199

Age, years

71.2 ± 5.3

74.2 ± 5.5

70.8 ± 3.3

1.720

0.188

Duration (m)

15.7 ± 10.2

14.8 ± 7.4

–

121.0

0.000

Education, years

9.7 ± 2.5

9.0 ± 2.2

8.7 ± 2.1

1.070

0.348

MMSE

20.5 ± 2.9

20.0 ± 2.5

29.1 ± 0.8

101.8

0.000

HAMD

12.7 ± 2.5

3.35 ± 1.9

1.30 ± 0.9

190.0

0.000

D-NPI

5.82 ± 1.5

1.21 ± 0.51

0.60 ± 0.6

238.0

0.000

RMS of head motion

0.08 ± 0.06

0.08 ± 0.08

0.06 ± 0.03

0.30

0.745

FD of head motion

0.29 ± 0.18

0.28 ± 0.15

0.24 ± 0.12

0.77

0.467