Table 1.

Demographics and clinical characteristics of the participants.

	AD (N = 8)	HC (N = 12)	P
Gender (men/women)	4/4	7/5	0.7136
Age	76.88 ± 0.74	73.67 ± 2.30	0.2834
Years of education	13.13 ± 0.91	14.68 ± 0.67	0.2041
MMSE	22.5 ± 1.35	29.08 ± 0.29	<0.0001***
BDI-II	8 ± 1.78	4.92 ± 1.15	0.1445
WMS
Immediate memory	2.75 ± 0.98	9.46 ± 0.74	<0.0001
Delayed memory	1.38 ± 1.02	12.73 ± 0.99	<0.0001
RCPM	25.88 ± 1.06	30.27 ± 1.83	0.0774
ADL	30.75 ± 3.36	20.36 ± 0.36	0.0021**
Digit span
Forward	6.63 ± 0.32	7 ± 0.21	0.3292
Backward	3.25 ± 0.31	5 ± 0.50	0.0157*
Attentional matrices
PC (%)	84.59 ± 2.40	94.09 ± 1.68	0.0038**
PE (%)	67.86 ± 6.74	88.16 ± 2.31	0.0052**

*P < 0.05, **P < 0.01, ***P < 0.001.