Relationships between False Recognition and Global Cognitive Abilities in Older Adults

Cross-Sectional Results from the SONIC Study

抄録

We examined the relationships between false recognition and global cognitive abilities using data from 1000 Japanese community-dwelling participants in the Septuagenarian, Octogenarian, Nonagenarian Investigation with Centenarian (SONIC) Project. Multiple regression analyses were conducted with the total and five subsets of global cognitive abilities as each dependent variable, false alarm rate and hit rate as the independent variables. After adjusting for covariates (sex, education, and primary school remarks), the false alarm rate was significantly associated with all cognitive abilities. The hit rate was significantly associated with the global cognition, the recall memory, and the orientation, marginally significantly associated with executive functioning, but not significantly associated with verbal fluency and delayed memory. These results suggest that an increase of false alarm rate may reflect cognitive decline, especially explicit cognitive process, and that false recognition may be more informative for screening cognitive impairment in older adults.