心肺适能与年轻人持续注意力之间关联的脑电相关性。
Electrocortical correlates of the association between cardiorespiratory fitness and sustained attention in young adults.
机构信息
Brain Electrophysiology Attention Movement Laboratory, Institute of Psychology, University of Lausanne, Lausanne, Switzerland.
Brain Electrophysiology Attention Movement Laboratory, Institute of Psychology, University of Lausanne, Lausanne, Switzerland.
出版信息
Neuropsychologia. 2022 Jul 29;172:108271. doi: 10.1016/j.neuropsychologia.2022.108271. Epub 2022 May 18.
Cardiorespiratory fitness is thought to be positively related to sustained attention. However, the underlying mechanisms of this relationship have yet to be fully elucidated. The objective of this study was to i) explore the relationship between cardiorespiratory fitness and sustained attention in 72 young adults (18-37 years old) and ii) provide insight on the electrocortical dynamics supporting sustained attention performance in individuals differing in cardiorespiratory fitness by means of EEG topographic analyses and source localization. Behaviorally, cardiorespiratory fitness was related to faster response times and higher accuracy in the psychomotor vigilance task even when adjusting the model with confounding variables such as age, body mass index and chronic physical activity. However, there was no relationship between cardiorespiratory fitness and the classic vigilance decrement observed in the sustained attention task. At the electrocortical level, higher cardiorespiratory fitness was related to increased global field power (310-333 ms poststimulus) localized in the posterior cingulate cortex (BA 30) followed by changes in scalp topographies around the P3b ERP component (413-501 ms poststimulus), which corresponded to earlier activation of the supplementary motor areas (BA 6). This is the first study using high-density EEG, which harnesses the whole spatiotemporal dynamics of the relationship between cardiorespiratory fitness and sustained attention in young adults.
心肺适能被认为与持续注意力呈正相关。然而，这种关系的潜在机制尚未完全阐明。本研究的目的是：i）在 72 名年轻成年人（18-37 岁）中探索心肺适能与持续注意力之间的关系；ii）通过 EEG 拓扑分析和源定位，为不同心肺适能个体的持续注意力表现提供电皮质动力学的见解。行为上，即使在调整模型以适应年龄、体重指数和慢性体力活动等混杂变量后，心肺适能与精神运动警觉任务中的更快反应时间和更高准确性相关。然而，在持续注意力任务中观察到的经典警觉下降与心肺适能之间没有关系。在电皮质水平上，较高的心肺适能与刺激后 310-333 毫秒时的全局场强（global field power）增加有关，该区域定位于后扣带回皮层（BA 30），随后在 P3b ERP 成分（刺激后 413-501 毫秒）周围的头皮地形图发生变化，这对应于补充运动区（BA 6）的早期激活。这是第一项使用高密度 EEG 的研究，利用了心肺适能与年轻成年人持续注意力之间关系的整个时空动态。
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