Acute effects of aerobic exercise on response variability and neuroelectric indices during a serial n-back task.
To determine the neuroelectric underpinnings of exercise-induced changes in working memory, this study investigated the acute effects ofaerobic exercise (AE) on the P3 component of an event-related potential and brain oscillations during a serial n-back task. Task-related electroencephalography was collected in 23 young adults following 20 min of rest and AE on separate, counterbalanced days. The results revealed reductions in standard deviation of response time and coefficient of variation of response time following AE compared to rest. Neuroelectric analyses showed increased P3 amplitude following AE compared to rest. Task-related frontal alpha desynchronization was stronger in the 2-back compared with the 1-back task following AE, while no such modulation was observed following rest. These findings suggest AE may temporarily enhance working memory, as reflected by decreases in response variability, which are accompanied by neuroelectric indices reflecting greater upregulation of attentional processes.
['Kao|Shih-Chun|SC|', 'Wang|Chun-Hao|CH|', 'Hillman|Charles H|CH|']
D000328:Adult D000513:Alpha Rhythm D001288:Attention D003344:Cortical Synchronization D018913:Event-Related Potentials, P300 D015444:Exercise D005260:Female D006801:Humans D008297:Male D008570:Memory, Short-Term D011597:Psychomotor Performance D011930:Reaction Time D013826:Theta Rhythm D055815:Young Adult
Working memory P3 Alpha Physical activity Theta