Information integration about object-object relationships by chimpanzees (Pan troglodytes).
Three experiments tested the ability to integrate information about object-object relationships in 2 chimpanzees. In Experiment 1, the subjects were trained to match 1 part of a 2-part object to its other part, match a tool to its assembled object, match a container to its tool, and match a tool to its container. In Experiment 2, the subjects were trained to match a picture of the sample. One subject learned this type of matching task and was then tested on whether she could choose the pictures of related items in Experiment 1. Although the subject was reinforced irrespective of her choices, she chose pictures of items related to the sample when there was no picture of the sample. Experiment 3 showed that the subject was able to match a picture of the item among related items. The results suggest that the subject might integrate information about relationships acquired in Experiment 1 and organize it to make networks of related items.
Tanaka
M
M
Department of Behavioral and Brain Sciences, Primate Research Institute, Kyoto University, Japan. mtanaka@tmig.or.jp
D000818:Animals; D001288:Attention; D004193:Discrimination Learning; D005260:Female; D005556:Form Perception; D005793:Generalization, Psychological; D011939:Mental Recall; D002679:Pan troglodytes / Q000523:psychology*; D011340:Problem Solving; D011597:Psychomotor Performance