Bovet D, Vauclair J
University of Provence, Aix-en-Provence, France.
Psychon Bull Rev. 2001 Sep;8(3):470-5. doi: 10.3758/bf03196181.
Baboons (Papio anubis) were tested on categorization tasks at two different conceptual levels. The monkeys showed their ability (1) to judge as identical or different the objects belonging to two categories, on a perceptual basis, and (2) to perform a judgment of conceptual identity-that is, to use the same/different relation between two previously learned categories. This latter experiment represents the first demonstration of judgment of conceptual identity in a monkey species.
对狒狒（埃及狒狒）进行了两个不同概念层次的分类任务测试。这些猴子表现出它们有能力：（1）在感知基础上判断属于两个类别的物体是相同还是不同；（2）进行概念同一性判断，即利用两个先前学习的类别之间的相同/不同关系。后一个实验是首次在猴类中证明概念同一性判断。
