The Power of a Handshake: Neural Correlates of Evaluative Judgments in Observed Social Interactions
The Power of a Handshake: Neural Correlates of Evaluative Judgments in Observed Social Interactions
复制标题
DOI：
10.1162/jocn_a_00295
复制
发表时间：
2012-12-01
影响因子：
3.2
通讯作者：
Dolcos, Florin
中科院分区：
文献类型：
--
作者：
Dolcos, Sanda;Sung, Keen;Dolcos, Florin
有效的社交互动需要评估他人的行为和意图的能力，有时仅基于肢体语言等微妙的因素，而这些评估性的判断可能会带来强大的印象。然而，关于情感肢体语言对社会环境中评价性反应的影响以及相关的神经关联，我们知之甚少。这项研究调查了在商业环境中观察社交互动的神经相关性，在商业环境中，全身动态刺激显示出握手或不握手之前的接近和回避行为，然后是参与者对这些行为的评分。首先，与回避行为相比，接近与更多的积极评价相关，在社交互动之前握手会增强接近的积极影响，并减弱回避行为对社交评价的负面影响。其次，杏仁核和STS对接近的敏感性高于对回避行为的敏感性，这与对接近行为的积极评价和握手的积极影响有关。第三，与握手对社会评价的积极影响有关，伏隔核在握手时比不握手时表现出更大的活性。这些发现揭示了观察和评估非语言社交互动的神经关联，以及握手作为正式问候方式的作用。
Effective social interactions require the ability to evaluate other people's actions and intentions, sometimes only on the basis of such subtle factors as body language, and these evaluative judgments may lead to powerful impressions. However, little is known about the impact of affective body language on evaluative responses in social settings and the associated neural correlates. This study investigated the neural correlates of observing social interactions in a business setting, in which whole-body dynamic stimuli displayed approach and avoidance behaviors that were preceded or not by a handshake and were followed by participants' ratings of these behaviors. First, approach was associated with more positive evaluations than avoidance behaviors, and a handshake preceding social interaction enhanced the positive impact of approach and diminished the negative impact of avoidance behavior on the evaluation of social interaction. Second, increased sensitivity to approach than to avoidance behavior in the amygdala and STS was linked to a positive evaluation of approach behavior and a positive impact of handshake. Third, linked to the positive effect of handshake on social evaluation, nucleus accumbens showed greater activity for Handshake than for No-handshake conditions. These findings shed light on the neural correlates of observing and evaluating nonverbal social interactions and on the role of handshake as a way of formal greeting.