The effects of an afterschool physical activity program on working memory in preadolescent children

Keita Kamijo*, Matthew B. Pontifex, Kevin C. O'Leary, Mark R. Scudder, Chien Ting Wu, Darla M. Castelli, Charles H. Hillman

*この研究の対応する著者

研究成果: Article査読

225 被引用数 (Scopus)

抄録

The present study examined the effects of a 9-month randomized control physical activity intervention aimed at improving cardiorespiratory fitness on changes in working memory performance in preadolescent children relative to a waitlist control group. Participants performed a modified Sternberg task, which manipulated working memory demands based on encoding set sizes, while task performance and the contingent negative variation (CNV) event-related brain potential were measured. Analyses revealed that the physical activity intervention led to increases in cardiorespiratory fitness and improved Sternberg task performance. Further, the beneficial effects of the physical activity intervention were greater for a task condition requiring greater working memory demands. In addition, the intervention group exhibited larger initial CNV at the frontal electrode site, relative to the waitlist group at post-test; an effect not observed during the pre-test. These results indicate that increases in cardiorespiratory fitness are associated with improvements in the cognitive control of working memory in preadolescent children.

本文言語English
ページ(範囲)1046-1058
ページ数13
ジャーナルDevelopmental Science
14
5
DOI
出版ステータスPublished - 2011 9
外部発表はい

ASJC Scopus subject areas

  • 発達心理学および教育心理学
  • 認知神経科学

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