ABSTRACT
Background@#and
Purpose:
A new approach was proposed to score the Montreal Cognitive Assessment (MoCA) index scores for 6 cognitive domains
orientation (OIS),
attention (AIS),
language (LIS), visuospatial function (VIS),
memory (MIS), and
executive function (EIS). This study investigated whether the MoCA index scores represent the functions of each cognitive domain by examining the correlations with the corresponding cognitive domain scores derived from conventional
neuropsychological tests included in the
Seoul Neuropsychological
Screening Battery, 2nd Edition (SNSB-II). @*
Methods@#The participants were 104 amnestic
mild cognitive impairment (aMCI), 74 vascular
mild cognitive impairment (VaMCI), 73
dementia of the Alzheimer's type (DAT), and 41
vascular dementia (VaD)
patients. All participants were administered the Korean-MoCA and SNSB-II. @*Results@#Like the MoCA total score, the MoCA-OIS, MoCA-VIS, and MoCA-MIS showed differences between aMCI and AD groups and between VaMCI and VaD groups. The MoCAAIS, MoCA-LIS, and MoCA-EIS showed significant differences between VaMCI and VaD groups, but no difference between aMCI and DAT groups. In the aMCI and VaMCI groups, all index scores of the MoCA showed significant correlations with the corresponding cognitive domain scores of the SNSB-II. Except for MoCA-MIS, the MoCA-AIS, MoCA-LIS, MoCA-VIS, and MoCA-EIS also showed significant correlations with the corresponding domain scores of the SNSB-II in the DAT and VaD groups. @*Conclusions@#These results indicate that all MoCA index scores, except for MoCA-MIS, which does not reflect the severity of
memory impairment in
dementia patients, provide highly valid information on the function of each cognitive domain in
patients with
mild cognitive impairment and
dementia.