Mean values and standard deviations (SD, in parentheses) of the main demographic and neuropsychological measures.

t-tests were carried out to compare scores at group level on each cognitive scale. Asterisks indicate significant differences (p<0.05) between CG and sdaMCI and between CG and mdaMCI groups. Although group differences between CG and sdaMCI groups were significant in CAMCOG-executive scale, performance on each individual participant was not lower than 1.5 SD for norms of age and years of schooling.