REACTIONS TO (IN) EQUALITY IN CAPUCHIN MONKEYS

这个子项目是许多研究子项目中的一个 由NIH/NCRR资助的中心赠款提供的资源。子项目和 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可以在其他CRISP条目中表示。所列机构为 研究中心，而研究中心不一定是研究者所在的机构。 对于社会性动物来说，它们需要了解彼此的性别、社会地位和它们所处的状态（例如它们是否饥饿、痛苦、恐惧或具有攻击性）。这个项目调查了棕色卷尾猴（Cebus apella）对他们的同伴的了解。它要求他们根据投影在电脑屏幕上的肖像，指出属于他们的群体。它要求他们根据呼叫者的身份对呼叫进行厌恶或吸引的评级（例如，雌性是否会发现自己后代的痛苦呼叫比无关的青少年的呼叫更令人厌恶？），并根据猴子对自己饥饿状态的了解来评估它们是否会与其他猴子分享食物，看看它们是否会考虑到其他猴子的需求。现有30只卷尾猴，饲养在室内/室外围栏中，接受临时隔离实验的训练。这项拟议中的研究阐明了通常被认为是理所当然的基本社会认知。

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. For social animals to react appropriately to each other they need to know about each others' gender, social status, and the state they are in (such as whether they are hungry, distressed, fearful, or aggressive). This project examines what brown capuchin monkeys (Cebus apella) know about their group mates. It asks them to indicate, on the basis of portraits projected on a computer screen, which belongs to their group. It asks them to rate calls as either aversive or attractive, dependent on the identity of the caller (for example, does a female find the distress calls of her own offspring more aversive than such calls by unrelated juveniles?), and assessed whether monkeys share food with others based on what they know about their hunger state to see if they take the needs of others into account. Available are 30 capuchin monkeys, kept in indoor/outdoor enclosures, trained for temporary separation for experiments. The proposed study illuminates basic social cognition that is often taken for granted.