A single bout of aerobic exercise does not alter inhibitory control preparatory set cerebral hemodynamics: Evidence from the antisaccade task

IF 2.2 3区心理学 Q3 NEUROSCIENCES

Brain and Cognition Pub Date : 2024-06-01 DOI:10.1016/j.bandc.2024.106182

Gianna Jeyarajan , Azar Ayaz , Fabian Herold , Liye Zou , Matthew Heath

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引用次数: 0

Abstract

A single bout of exercise improves executive function (EF) and is a benefit – in part –attributed to an exercise-mediated increase in cerebral blood flow enhancing neural efficiency. Limited work has used an event-related protocol to examine postexercise changes in preparatory phase cerebral hemodynamics for an EF task. This is salient given the neural efficiency hypothesis’ assertion that improved EF is related to decreased brain activity. Here, event-related transcranial Doppler ultrasound was used to measure pro- (saccade to target) and antisaccades (saccade mirror-symmetrical target) preparatory phase middle cerebral artery velocity (MCAv) prior to and immediately after 15-min of aerobic exercise. Antisaccades produced longer reaction times (RT) and an increased preparatory phase MCAv than prosaccades – a result attributed to greater EF neural activity for antisaccades. Antisaccades selectively produced a postexercise RT reduction (ps < 0.01); however, antisaccade preparatory phase MCAv did not vary from pre- to postexercise (p=0.53) and did not correlate with the antisaccade RT benefit (p = 0.31). Accordingly, results provide no evidence that improved neural efficiency indexed via functional hyperemia is linked to a postexercise EF behavioural benefit. Instead, results support an evolving view that an EF benefit represents the additive interplay between interdependent exercise-mediated neurophysiological changes.

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单次有氧运动不会改变抑制控制预备集脑血流动力学：来自反施法任务的证据

单次运动可改善执行功能（EF），这种益处部分归因于运动介导的脑血流量增加，从而提高了神经效率。使用事件相关方案来研究运动后执行功能任务的准备阶段脑血流动力学变化的工作十分有限。鉴于该假说认为 EF 的改善与大脑活动的减少有关，这一点非常重要。在此，研究人员使用事件相关经颅多普勒超声波测量了有氧运动 15 分钟之前和之后的顺行（向目标回扫）和逆行（回扫镜像对称目标）准备阶段的大脑中动脉速度（MCAv）。与前向动作相比，反向动作产生的反应时间（RT）更长，准备阶段的中脑动脉速度（MCAv）更高--这一结果归因于反向动作的EF神经活动更强。运动后，反复读选择性地缩短了反应时间（PS < 0.01）；然而，反复读准备阶段的 MCAv 在运动前和运动后没有变化（P=0.53），也与反复读反应时间的益处无关（P = 0.31）。因此，研究结果没有提供证据表明，通过功能性充血指数反映的神经效率改善与运动后 EF 行为获益有关。相反，研究结果支持了一种不断发展的观点，即EF益处代表了相互依存的运动介导的神经生理变化之间的叠加相互作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Brain and Cognition 医学-神经科学

CiteScore

4.60

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： Brain and Cognition is a forum for the integration of the neurosciences and cognitive sciences. B&C publishes peer-reviewed research articles, theoretical papers, case histories that address important theoretical issues, and historical articles into the interaction between cognitive function and brain processes. The focus is on rigorous studies of an empirical or theoretical nature and which make an original contribution to our knowledge about the involvement of the nervous system in cognition. Coverage includes, but is not limited to memory, learning, emotion, perception, movement, music or praxis in relationship to brain structure or function. Published articles will typically address issues relating some aspect of cognitive function to its neurological substrates with clear theoretical import, formulating new hypotheses or refuting previously established hypotheses. Clinical papers are welcome if they raise issues of theoretical importance or concern and shed light on the interaction between brain function and cognitive function. We welcome review articles that clearly contribute a new perspective or integration, beyond summarizing the literature in the field; authors of review articles should make explicit where the contribution lies. We also welcome proposals for special issues on aspects of the relation between cognition and the structure and function of the nervous system. Such proposals can be made directly to the Editor-in-Chief from individuals interested in being guest editors for such collections.