SOCIAL MODIFICATION OF PRIMATE BEHAVIOR

这个子项目是许多研究子项目中利用 资源由NIH/NCRR资助的中心拨款提供。子项目和 调查员(PI)可能从NIH的另一个来源获得了主要资金， 并因此可以在其他清晰的条目中表示。列出的机构是 该中心不一定是调查人员的机构。 这项研究的目的是建立棕色卷尾猴(Cebus Apella)如何根据他们所拥有的知识和亲与竞争的倾向对他们的小组成员做出反应。我们要求猴子根据投射在电脑屏幕上的肖像，指出属于它们的群体。我们要求他们根据他们对自己饥饿状态的了解与他人分享食物，看看他们是否考虑到了其他人的需求。 目前的项目越来越多地依赖于互惠和“雪堆”博弈(即，一种博弈论情况，即两个人都受益或都失去，这取决于他们的合作倾向)。我们的发现显示了人脸识别的复杂程度(包括所谓的反转效应)和合作倾向，被引用最多的论文是关于不公平厌恶的论文，即猴子对同一任务获得的回报低于伴侣的反应。有30只卷尾猴，饲养在室内/室外的围栏里，接受过临时隔离的训练，以便进行实验。 耶克斯灵长类中心的实验室是许多本科生和研究生的教育工具，他们在课堂上接受了宝贵的培训。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The objecrtive of this study is to establish how brown capuchin monkeys (Cebus apella) react to their group mates in terms of the knowledge they have and the procosial vs. competitive tendencies. We asked the monkeys to indicate, on the basis of portraits projected on a computer screen, which belongs to their group. We asked them to share food with others based on what they know about their hunger state to see if they take the needs of others into account. Current projects are increasingly on reciprocity and the "snowdrift" game (i.e. a game theory situation in which both individuals benefit or both lose dependent on their cooperative tendencies). Our findings show a sophisticated level of face recognition (including the so-called inversion effect) and cooperative tendencies, with the most widely cited papers being those on inequity aversion, i.e. the way monkeys respond to obtaining a lesser reward than their partner for the same task. Thirty capuchin monkeys are available, kept in indoor/outdoor enclosures, trained for temporary separation for experiments. The laboratory at the Yerkes Primate Center serves as an educational tool for many undergraduate and graduate students, who obtain valuable training in combination with their classes.