Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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The Differences of Visuospatial Cognitive Performance and Cerebral Activation and Lateralization between 20s and 40s

20대와 40대의 공간 인지 능력, 대뇌 활성화 및 대뇌 편측화의 차이

  • Published : 2006.01.01
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Abstract

The present study purposed to examine differences between 20s and 40s in visuospatial performance, the number of activated yokels and cerebral lateralization using functional Magnetic Resonance Imaging (fMRI). For this study, eight college students in their twenties (21.5 years on the average) and six adults in their forties (45.7 years on the average) participated in the experiment. Functional brain images were taken from 37 MRI using the single-shot EPI method. Compared to the twenties the forties showed lower visuospatial performance and longer reaction time. In addition, compared to the twenties the forties had a smaller number of activated yokels and less cerebral lateralization. The results of this study show that people's visuospatial performance and number of activated yokels decrease with aging. In addition, they also suggest that cerebral lateralization decreases in order to supplement the lowering of visuospatial performance, which in turn symmetrizes the activation of the left and right hemisphere.

Keywords

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