2020 Volume 22 Issue 2 Pages 211-218
We are developing screening tools for dementia using character input BCI (Brain-Computer Interface). In previous study, Spelling-Error Distance Value (SEDV) could be an index of the low attention with dementia in the limited MMSE average group. However, it was not statistically clear whether classification between normal group or MCI group and dementia group was possible. Therefore, we used FAB and MOCA-J to regroup the elderly with the initial cognitive decline level and to determine if early discrimination was possible. Furthermore, we compared the elderly people who were judged as NC or MCI or DLB or AD. As a result of comparing SEDV divided into two groups by the sub-item 10 points to examine the frontal lobe function of MOCA-J, a difference of 0.80 characters was found in SEDV. Furthermore, as a result of comparing SEDV in the NC group, MCI group, DLB group and AD group, there was a difference of SEDV 1.01 characters between MCI group and AD group. In addition, there was a difference of SEDV 0.79characters between NC group and AD group. Therefore, it was shown that NC group, MCI group and AD group can be distinguished by using SEDV.
