The evolution of group-mindedness: Comparative perspectives with humans' evolutionarily and socially closest species

群体意识的进化：与人类在进化和社会上最接近的物种的比较视角

• 批准号: 22KJ1677
• 负责人: BROOKS JAMES
• 金额: $ 0.83万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2023
• 资助国家: 日本
• 起止时间: 2023-03-08 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KJ1677/
• 关键词: oxytocin; bonobo; chimpanzee; group-mindedness; collective behaviour; cooperation; evolution; intergroup competition; horse; competition; group behaviour; cognitive evolution

In this fiscal year I published 3 scientific articles, presented my research at 2 large international conferences, and collected data on several new projects. I was able to analyze my free-ranging horse GPS data, finding significant effects of oxytocin on group organization (decreased group differentiation and more diffuse groups), as well as finishing collecting data from 8 bonobo groups at 5 sites in an international collaboration on the effect of outgroup vocalizations on ingroup social behaviour (finding bonobos do tend to unite with their ingroup in the face of perceived outgroup threat, but to a lesser degree than chimpanzees in the previous study). I also collected data on eye contact as mediated through social closeness using eye-tracking, accumulated observational data from several groups, and conducted a new horse observational study using drones to observe co-feeding (examining how oxytocin affects actual social behaviour beyond spatial organization). I also began to assemble the studies into a doctoral thesis to graduate this fiscal year, where the studies converge to support a role of intergroup threat on certain forms of group-mindedness as supported by the oxytocin system.

在这个财政年度里，我发表了3篇科学论文，在2个大型国际会议上展示了我的研究，并收集了几个新项目的数据。我能够分析我的自由放养的马的GPS数据，发现催产素对群体组织的显著影响（减少群体分化和更分散的群体），以及在一个国际合作中完成从5个地点的8个倭黑猩猩群体收集的数据，研究外群体发声对内群体社会行为的影响（发现倭黑猩猩在面对感知到的外群体威胁时确实倾向于与他们的内群体团结起来）。但在之前的研究中，这种程度低于黑猩猩)。我还通过眼动追踪收集了通过社交亲密来调节眼神接触的数据，积累了来自几个小组的观察数据，并进行了一项新的马观察研究，使用无人机观察共同喂食（研究催产素如何影响空间组织之外的实际社会行为）。我还开始将这些研究整合到本财政年度毕业的博士论文中，这些研究集中在一起，支持群体间威胁对某些形式的群体意识的作用，这是由催产素系统支持的。

项目成果

Contagious urination among captive chimpanzees: Investigation of initiator and follower

圈养黑猩猩的传染性排尿：发起者和跟随者的调查

• 发表时间: 2022
• 作者: Onishi;E;Inoue;S;Brooks;J;Yamamoto;S
• 通讯作者: S

Perceived outgroup threat promotes ingroup cohesion in chimpanzees

黑猩猩感知到的外群体威胁促进了内群体凝聚力

• 发表时间: 2022
• 作者: Brooks;J;Onishi;E;Clarke;I;Bohn;M;Yamamoto;S
• 通讯作者: S

Oxytocin promotes species-relevant social attention in bonobos and chimpanzees

催产素促进倭黑猩猩和黑猩猩物种相关的社会关注

• 发表时间: 2022
• 作者: James Brooks;Fumihiro Kano;Shinya Yamamoto
• 通讯作者: Shinya Yamamoto

Response: Commentary: Dog Stick Chewing: An Overlooked Instance of Tool Use?

• DOI: 10.3389/fpsyg.2021.757526
• 发表时间: 2021
• 期刊: Frontiers in psychology
• 影响因子: 3.8
• 作者: Brooks J;Yamamoto S
• 通讯作者: Yamamoto S

Oxytocin promotes social grooming in bonobos

催产素促进倭黑猩猩的社交梳理

• DOI: 10.1101/2021.11.30.468796
• 发表时间: 2022
• 期刊: BioRXiv
• 作者: Brooks James;Kano Fumihiro;Yeow Hanling;Morimura Naruki;Yamamoto Shinya
• 通讯作者: Yamamoto Shinya