Oxytocin reduces food sharing in capuchin monkeys by modulating social distance
Oxytocin reduces food sharing in capuchin monkeys by modulating social distance
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DOI：
10.1163/1568539x-00003268
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发表时间：
2015-01-01
期刊：
影响因子：
1.3
通讯作者：
Zak, Paul J.
中科院分区：
文献类型：
--
作者：
Brosnan, Sarah F.;Talbot, Catherine F.;Zak, Paul J.
最近的证据表明，催产素在促进人类和其他物种的亲社会行为中起着重要作用。我们测试了催产素是否会影响卷尾猴的合作和食物分享，卷尾猴是一种高度合作的新世界灵长类动物。受试者在每次治疗前接受2IU的催产素或鼻内惰性佐剂。催产素以我们没有预料到的方式影响了卷尾猴的食物分享。与对照组相比，接受OT治疗的人更不可能被动地从拥有者那里获取食物，而且与伴侣相处的时间也更少。被动分享食物需要接近，催产素减少了卷尾猴典型的聚集行为，显然导致分享减少。我们认为社交距离增加的可能机制是催产素的抗焦虑作用。我们的研究结果表明，需要考虑催产素如何影响相互作用的背景，以及与每个物种独特的社会性模式的相互作用。
Recent evidence indicates that oxytocin plays an important role in promoting prosocial behaviour amongst humans and other species. We tested whether oxytocin affected cooperation and food-sharing in capuchin monkeys, a highly cooperative New World primate. Subjects received either 2IU oxytocin or an inert adjuvent intranasally prior to each session. Oxytocin influenced food sharing in capuchins in ways we did not anticipate. Recipients were less likely to passively acquire food from possessors when either individual had received OT than in the control, and also spent less time in proximity to their partner. Passive food sharing requires proximity, and oxytocin decreased the capuchins' typical congregating behaviour, apparently resulting in decreased sharing. We propose that the likely mechanism for increased social distance is the known anxiolytic effect of oxytocin. Our results indicate a need to consider how oxytocin affects the context of interactions and interacts with modes of sociality unique to each species.