Wainio-Theberge Soren, Armony Jorge L
Department of Psychiatry, McGill University, Montreal, QC H3A 1A1, Canada.
Douglas Mental Health University Institute, Montreal, QC H4H 1R3, Canada.
Soc Cogn Affect Neurosci. 2025 May 15;20(1). doi: 10.1093/scan/nsaf036.
Social dominance is conveyed by expansive and contractive body postures, which also have feedback effects on individuals' own mood and behaviour. These feedback effects are the subject of the 'power posing' paradigm, which has grown in popularity in psychology; however, the neural mechanisms of feedback from expansive and contractive postures have never been investigated. We report here for the first time an exploratory neuroimaging study using electroencephalography during a 'power posing' design to investigate the neural correlates of this effect. We find that right-lateralized frontal asymmetry in neural activity was increased as a result of taking an expansive posture and that this asymmetry was correlated with the effects the posture exerted on participants' mood. We interpret this finding in the context of recent theories of frontal alpha asymmetry and motivational conflict.
社会支配地位通过扩张性和收缩性的身体姿势来传达，这些姿势也会对个体自身的情绪和行为产生反馈作用。这些反馈作用是“权力姿势”范式的研究主题，该范式在心理学领域越来越受欢迎；然而，扩张性和收缩性姿势反馈的神经机制从未被研究过。我们在此首次报告一项探索性神经影像学研究，该研究在“权力姿势”设计过程中使用脑电图来探究这种效应的神经关联。我们发现，采取扩张性姿势会导致神经活动中右侧额叶不对称性增加，并且这种不对称性与该姿势对参与者情绪产生的影响相关。我们在最近关于额叶阿尔法不对称性和动机冲突的理论背景下解释这一发现。
