Body posture influences feelings about the self, but little is known about its impact on social cognition more generally. We apply the Big Two framework (Agency/Competence, Communion/Warmth) and study how body posture influences interpersonal perception in a dyadic interaction. In three experiments, we studied dyads with different body postures (Exps. 1 and 2: expanded/restricted; Exp. 3: expanded/neutral). Dyad members worked on a joint task, and rated self and other. Findings showed that participants in an expanded posture rated the self higher and the other lower on agency, whereas those in a submissive (or neutral) posture rated the self lower and the other higher on agency. In Experiment 2, participants in a submissive posture also rated their communion lower. Results are important both for the impact of body posture on interpersonal perception and for context effects in the relationship of Agency versus Communion ratings of self and others.

中文翻译：

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二元互动中的身体姿势和人际关系感知：两大分析

身体姿势会影响对自我的感觉，但对它对社会认知的影响知之甚少。我们应用两大框架（机构/能力，圣餐/温暖），并研究身体姿势如何在二元互动中影响人际知觉。在三个实验中，我们研究了具有不同身体姿势的二元组（实验1和2：扩展/受限；实验3：扩展/中立）。Dyad成员从事一项共同任务，并对自我和其他人进行了评分。研究结果表明，处于伸展姿势的参与者对自我的评价较高，而对他人的态度较低，而在服从（或中立）姿势的参与者对自我评价的评价较低，而对对方的评价较高。在实验2中，以顺从姿势的参与者对他们的圣餐也给予了较低的评价。