Table 1.

Demographic information and neuropsychological tests for three groups

	Gender (male/female)	Age	MMSE	FAB	TMT A (in s)	TMT B (in s)
HC	5/15	73 (SD = 7)	28.35 (SD = 1.5)	15.94 (SD = 1.78)	45.38 (SD = 15.2)	118 (SD = 45.7)
MCI	8/16	75 (SD = 9)	24.75 (SD = 3.18)	15.1 (SD = 1.74)	56.4 (SD = 19.1)	171.73 (SD = 94.78)
AD	12/11	77 (SD = 9)	17 (SD = 4.62)	10.89 (SD = 3.94)	66.58 (SD = 37.67)	279.29 (SD = 64.05)

HC healthy control subjects, MCI mild cognitive impairment subjects, AD Alzheimer’s disease subjects, MMSE mini-mental state examination, FAB frontal assessment battery, TMT A trail making test version A, TMT B trail making test version B