RESPONSIVENESS OF COGEVO AND MOCA-J TO A SIX-MONTH HOME-BASED COMPUTERIZED COGNITIVE TRAINING PROGRAM IN MIDDLE-AGED AND OLDER JAPANESE ADULTS: AN EXPLORATORY ANALYSIS

Abstract

Background: Early detection of neurocognitive decline in middle-aged and older adults is critical to optimize cognitive health and prevent dementia. While computerized cognitive training (CCT) like "SoroTouch" shows promise, identifying the most sensitive screening instrument is essential. This study compared the utility of CogEvo and the Japanese version of the Montreal Cognitive Assessment (MoCA-J) as early detection tools for cognitive decline.

Methods: This exploratory secondary data analysis and cross-sectional study utilized baseline data from a randomized controlled trial involving 20 healthy adults aged 42–79 in Japan. Participants engaged in daily home-based CCT using the SoroTouch digital abacus application. Neurocognitive changes were measured monthly over 6 months using both CogEvo and MoCA-J instruments.

Results: Post-intervention measurements demonstrated significant neurocognitive changes captured by both instruments. CogEvo scores increased significantly from 1459.50 ± 298.49 to 1700.60 ± 269.13 (t = -3.161; p=0.005). MoCA-J scores also showed changes (t =-4.225; p<0.001). However, correlation analysis showed that CogEvo sub-variables were highly responsive to key determinants: orientation was significantly related to age (p=0.006)) and BMI (p=0.027), while flashing light correlated with age (p<0.001) and physical exercise (p=0.001). Overall, CogEvo demonstrated superior capability and higher sensitivity in capturing early neurocognitive shifts.

Conclusion: Age and physical exercise are primary predictors of early neurocognitive status. CogEvo serves as a more sensitive, easy-to-use, and superior alternative to MoCA-J for screening early neurocognitive decline in community-dwelling healthy older adults.