ISSN : 1229-067X
It has been suggested that socially active lifestyle might play a protective role against neurocognitive disorders and cognitive aging by contributing to cognitive reserve. The purpose of this study is to investigate the effects of social activity on cognitive functions in older adults, including processing speed, episodic memory, language and executive function, and the moderating effects of education in the relationship between social activity and cognitive functions. The social activities questionnaire and neuropsychological tests were conducted to 146 normal older adults(age M=72.33, SD=6.46) who participated in “Korean Social Life, Health and Aging Project: KSHAP.” Based on this data the effect of social activity on the cognitive performance and the moderating effect of education levels were analyzed using hierarchical multiple regression. The result showed a significant effect of social activity on the total score of MMSE-DS, which is a measurement of overall cognitive function. Also the effects of social activity were significant in color reading of Stroop, Category Fluency, and K-BNT scores. The interaction effect of education level and social activity was also significant in recognition score of Elderly Verbal Learning Test, delayed recall score of Simple Rey Figure Test, word reading of Stroop, and part A of Modified Trail Making Test. These results suggest that social activity slows the age-associated decline in cognitive functions, and serves as a protective factors on the cognition decline in old age, particularly in individuals with low education level and thus more vulnerability to cognitive impairment. Therefore institutional efforts should be made to facilitate the social activity participation of older adults for successful aging.
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