Oxytocin promotes social grooming in bonobos
Oxytocin promotes social grooming in bonobos
复制标题
催产素促进倭黑猩猩的社交梳理
DOI：
10.1101/2021.11.30.468796
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Yamamoto Shinya
中科院分区：
文献类型：
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作者：
Brooks James;Kano Fumihiro;Yeow Hanling;Morimura Naruki;Yamamoto Shinya
催产素由于其促进社会联系的作用而引起了研究关注。在倭黑猩猩和黑猩猩这两个与人类关系最密切的物种中，已知尿催产素与与社会联系相关的关键行为相关，例如黑猩猩的社交梳理行为和倭黑猩猩的雌性性行为。然而，没有研究表明催产素的施用可以促进潘族现实生活中的社交互动，因此尚不清楚催产素是否仅仅与社会行为相关，或者确实影响这些物种的社会行为。为了测试这一点，我们给一组雌性倭黑猩猩注射了雾化催产素或盐水安慰剂，随后观察了它们在自由互动过程中总体行为的变化。我们发现在催产素状态下更频繁地梳理毛发会产生总体影响。然而，在个体层面上，这种效应对于我们的后续模型中只有一名参与者仍然显着，这表明未来的工作应该探索个体间的差异。我们的结果为生物行为反馈循环假说提供了一些实验支持，该假说认为催产素系统的某些功能通过正反馈循环支持社会纽带的形成和维持。然而，还需要对更多的人进行进一步的测试。我们的研究结果至少表明，催产素会影响至少一些雌性倭黑猩猩自发的、自然的社交互动，这进一步证明催产素调节倭黑猩猩复杂的社会行为。
Oxytocin has attracted research attention due to its role in promoting social bonding. In bonobos and chimpanzees, the two species most closely related to humans, urinary oxytocin is known to correlate with key behaviours related to social bonding such as social grooming in chimpanzees and female‐female sexual behaviour in bonobos. However, no study has demonstrated that the administration of oxytocin promotes real‐life social interactions inPan, leaving it unclear whether oxytocin is merely correlated with social behaviors or does affect them in these species. To test this, we administered nebulized oxytocin or saline placebo to a group of female bonobos and subsequently observed changes in their gross behavior during free interaction. We found an overall effect of more frequent grooming in the oxytocin condition. However, on the individual level this effect remained significant for only one participant in our follow‐up models, suggesting future work should explore interindividual variation. Our results provide some experimental support for the biobehavioural feedback loop hypothesis, which posits that some functions of the oxytocin system support the formation and maintenance of social bonds through a positive feedback loop; however, further tests with a larger number of individuals are required. Our results, at a minimum, demonstrated that oxytocin affects spontaneous, naturalistic social interactions of at least some female bonobos, adding to accumulating evidence that oxytocin modulates complex social behaviors ofPan.