Petruzzello S J, Tate A K
Department of Kinesiology, University of Illinois, Urbana 61801, USA.
Psychophysiology. 1997 Sep;34(5):527-33. doi: 10.1111/j.1469-8986.1997.tb01739.x.
Resting electroencephalograph (EEG) asymmetry is a biological marker of the propensity to respond affectively to, and a measure of change in affect associated with, acute aerobic exercise. This study examined the EEG-affect-exercise relationship. Twenty participants performed each of three randomly assigned 30-min conditions: (a) a nonexercise control, (b) a cycling exercise at 55% VO2max, and (c) a cycling exercise at 70% VO2max. EEG and affect were assessed pre- and 0, 5, 10, 20, and 30 min postcondition. No significant results were seen in the control or 55% conditions. In the 70% exercise condition, greater relative left frontal activation preexercise predicted increased positive affect and reduced state anxiety postexercise. Participants (n = 7) with extreme relative left frontal activation postexercise reported concomitant decreases in anxiety, whereas participants (n = 7) with extreme relative right frontal activation postexercise reported increases in anxiety. These findings (a) replicate prior work, (b) suggest a dose-response intensity effect, and (c) support the idea that exercise is an emotion-eliciting event. Affective responses seem to be mediated in part by differential resting levels of activation in the anterior brain regions. Ongoing anterior brain activation reflected concurrent postexercise affect.
静息脑电图（EEG）不对称性是对急性有氧运动产生情感反应倾向的一种生物学标志物，也是与急性有氧运动相关的情感变化的一种度量。本研究考察了脑电图-情感-运动之间的关系。20名参与者分别进行了三种随机分配的30分钟条件实验：（a）非运动对照，（b）以55%最大摄氧量（VO2max）进行的骑行运动，以及（c）以70%VO2max进行的骑行运动。在实验条件前以及实验后0、5、10、20和30分钟评估脑电图和情感。在对照或55%条件下未观察到显著结果。在70%运动条件下，运动前相对更大的左侧额叶激活预示着运动后积极情感增加和状态焦虑降低。运动后相对左侧额叶极度激活的参与者（n = 7）报告焦虑随之降低，而运动后相对右侧额叶极度激活的参与者（n = 7）报告焦虑增加。这些发现（a）重复了先前的研究，（b）表明了剂量-反应强度效应，并且（c）支持运动是一种引发情绪的事件这一观点。情感反应似乎部分由前脑区域不同的静息激活水平介导。持续的前脑激活反映了运动后的即时情感。
