Department of Physical Education, National Taiwan Normal University, Taipei, Taiwan.
Department of Psychology, Northeastern University, Boston, United States.
Brain Cogn. 2021 Apr;149:105695. doi: 10.1016/j.bandc.2021.105695. Epub 2021 Jan 27.
The current study focused on the effects of an 8-week motor skill-based physical activity (i.e., gymnastics) program on the contingent negative variation derived from event-related brain potentials (CNV-ERP) during a working memory task in children. Children aged 7-10 years old were assigned to a gymnastics group (n = 26) or a wait-list control group (n = 24). The gymnastics group engaged in a gymnastics program whereas children in the control group were asked to maintain their typical routine during the intervention period. Working memory performance was measured by a delayed-matching working memory task, accompanied by CNV-ERP collection. The results revealed significant improvement of response accuracy from pre-test to post-test in the gymnastic group regardless of memory demands. Moreover, significant increase from pre-test to post-test in the initial CNV was observed in the gymnastic group regardless of memory demands. Bivariate correlations further indicated that, in the gymnastic group, increases in response accuracy from pre-test to post-test were correlated with increases in initial CNV from pre-test to post-test in task conditions with lower and higher memory loads. Overall, the current findings suggest that up-regulation of proactive control may characterize the beneficial effects of childhood motor skill-based physical activity on working memory.
本研究旨在探讨为期 8 周的基于运动技能的身体活动（即体操）对儿童执行工作记忆任务时事件相关脑电位（CNV-ERP）中条件性负变（CNV）的影响。将 7-10 岁的儿童分为体操组（n=26）和候补对照组（n=24）。体操组参加体操课程，而对照组在干预期间则被要求保持其日常活动。通过延迟匹配工作记忆任务和 CNV-ERP 收集来测量工作记忆表现。结果表明，无论记忆需求如何，体操组在反应准确性上均从预测试到后测试有显著提高。此外，无论记忆需求如何，体操组在初始 CNV 上也从预测试到后测试有显著增加。双变量相关性进一步表明，在体操组中，无论记忆需求如何，从预测试到后测试的反应准确性提高与初始 CNV 从预测试到后测试的提高呈正相关，尤其是在记忆负荷较低和较高的任务条件下。总的来说，目前的研究结果表明，主动控制的上调可能是儿童基于运动技能的身体活动对工作记忆有益影响的特征。
