Moving in synchrony leads to cooperative behaviour and feelings of social closeness, and dance (involving synchronisation to others and music) may cause social bonding, possibly as a consequence of released endorphins. This study uses an experimental paradigm to determine which aspects of synchrony in dance are associated with changes in pain threshold (a proxy for endorphin release) and social bonding between strangers. Those who danced in synchrony experienced elevated pain thresholds, whereas those in the partial and asynchrony conditions experienced no analgesic effects. Similarly, those in the synchrony condition reported being more socially bonded, although they did not perform more cooperatively in an economic game. This experiment suggests that dance encourages social bonding amongst co-actors by stimulating the production of endorphins, but may not make people more altruistic. We conclude that dance may have been an important human behaviour evolved to encourage social closeness between strangers.

中文翻译：

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无声的迪斯科：同步跳舞会提高疼痛阈值和社交亲密度。

同步移动会导致合作行为和社交亲密感，而舞蹈（涉及与他人和音乐同步）可能会导致社交联系，这可能是释放内啡肽的结果。这项研究使用实验范式来确定舞蹈同步的哪些方面与疼痛阈值（内啡肽释放的代表）和陌生人之间的社会联系的变化有关。那些同步跳舞的人疼痛阈值升高，而部分和异步条件下的人没有镇痛作用。同样，那些处于同步状态的人报告说他们的社会联系更紧密，尽管他们在经济游戏中的表现并没有更合作。这个实验表明，舞蹈通过刺激内啡肽的产生来鼓励合作者之间的社会联系，但可能不会让人更加利他。我们得出结论，舞蹈可能是一种重要的人类行为，旨在鼓励陌生人之间的社交亲密关系。