University of Illinois at Urbana-Champaign, Department of Kinesiology and Community Health, Urbana, IL 61801, USA.
Biol Psychol. 2012 Feb;89(2):528-31. doi: 10.1016/j.biopsycho.2011.12.009. Epub 2011 Dec 23.
Previous event-related brain potential (ERP) investigations have demonstrated that single bouts of physical activity have transient benefits to aspects of cognitive control. However, this line of research has yet to explore goal maintenance. ERPs were collected using a within-participants design with young-adults following 30-min of both moderate walking and a non-exercise control session. Participants completed three conditions of an AX-continuous performance task (AX-CPT) that targeted goal maintenance processes, which were placed under greater cognitive demand when contexts were conflicting, as indexed by modulation of the N2 and P3 components. Following exercise, individuals exhibited increased accuracy for target trials, and P3 amplitude was greater at midline-parietal sites for both target trials and non-target trials. These results suggest that a single bout of aerobic exercise may facilitate goal maintenance processes and enable individuals to better inhibit extraneous neural activity to allocate greater attentional resources towards the updating and revision of goal representations.
先前的事件相关脑电位 (ERP) 研究表明，单次身体活动对认知控制的某些方面有短暂的益处。然而，这一研究领域尚未探索目标维持。采用参与者内设计，在年轻人进行 30 分钟适度步行和非运动对照后，收集了 ERP。参与者完成了三个 AX-连续表现任务 (AX-CPT) 的条件，这些条件针对目标维持过程，当上下文冲突时，这些过程的认知需求增加，这可以通过 N2 和 P3 成分的调制来衡量。运动后，个体在目标试验中表现出更高的准确性，并且在中线-顶叶位置，目标试验和非目标试验的 P3 振幅都更大。这些结果表明，单次有氧运动可能有助于目标维持过程，使个体能够更好地抑制无关的神经活动，将更多的注意力资源分配到目标表示的更新和修正上。
