Shi Donglin, Geng Fengji, Hu Yuzheng, Xu Qinmei
Department of Curriculum and Learning Sciences, Zhejiang University, Hangzhou, China.
The Children's Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China.
Front Psychol. 2020 Apr 23;11:696. doi: 10.3389/fpsyg.2020.00696. eCollection 2020.
Physical activity may improve cognitive control and episodic memory. Cognitive control could exert positive or negative influences on episodic memory. This study aimed to test whether physical activity modulated the effect of proactive and reactive control on episodic memory. Participants reported their physical activity in the past week, encoded episodic memory incidentally in proactive and reactive conditions, and subsequently retrieved their memories of items and sources. Subsequent item memory was better when items were encoded in proactive vs. reactive condition. Smaller condition difference in subsequent item memory was related to better cognitive control ability. Cognitive control completely mediated the relation between physical activity and the condition difference in subsequent item memory. Additionally, condition difference in subsequent source memory was negatively related to cognitive control. After controlling for cognitive control, greater physical activity was positively related to the difference in subsequent source memory between proactive and reactive conditions. Altogether, the findings suggested that physical activity modulated the effect of proactive and reactive control on subsequent item memory through improving cognitive control ability, but it was independent of cognitive control for subsequent source memory.
身体活动可能会改善认知控制和情景记忆。认知控制可能对情景记忆产生积极或消极影响。本研究旨在测试身体活动是否调节了主动控制和反应控制对情景记忆的影响。参与者报告了他们过去一周的身体活动情况，在主动和反应条件下偶然编码情景记忆，随后检索他们对项目和来源的记忆。当项目在主动条件下编码时，随后的项目记忆比在反应条件下更好。随后项目记忆中的条件差异较小与更好的认知控制能力有关。认知控制完全介导了身体活动与随后项目记忆中的条件差异之间的关系。此外，随后来源记忆中的条件差异与认知控制呈负相关。在控制了认知控制后，更多的身体活动与主动和反应条件下随后来源记忆的差异呈正相关。总之，研究结果表明，身体活动通过提高认知控制能力来调节主动和反应控制对随后项目记忆的影响，但它与随后来源记忆的认知控制无关。
