The effects of an afterschool physical activity program on working memory in preadolescent children.
The effects of an afterschool physical activity program on working memory in preadolescent children.
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DOI：
10.1111/j.1467-7687.2011.01054.x
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发表时间：
2011-09
影响因子：
3.7
通讯作者：
Hillman CH
中科院分区：
文献类型：
--
作者：
Kamijo K;Pontifex MB;O'Leary KC;Scudder MR;Wu CT;Castelli DM;Hillman CH
本研究考察了一项为期9个月、旨在改善心肺健康的随机对照体力活动干预对青春期前儿童工作记忆表现的影响。参与者执行了一项改进的Sternberg任务，该任务根据编码集的大小来控制工作记忆需求，同时测量任务表现和或有负变(CNV)事件相关脑电位。分析表明，体力活动干预导致心肺健康水平的提高和斯特恩伯格任务绩效的改善。此外，对于需要更多工作记忆需求的任务条件，体力活动干预的有益效果更大。此外，在后测时，干预组在额部电极部位的初始CNV比等待名单组大；这种影响在预试中没有观察到。这些结果表明，心肺适合度的提高与青春期前儿童工作记忆认知控制的改善有关。
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.
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影响因子：
2.3
作者：
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通讯作者：
Lamont, E
影响因子：
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作者：
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