期刊
JOURNAL OF COMPARATIVE PSYCHOLOGY
卷 117, 期 3, 页码 272-282出版社
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/0735-7036.117.3.272
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Increasing evidence for behavioral differences between populations of primates has created a resurgence of interest in examining mechanisms of information transfer between individuals. The authors examined the social transmission of information in 15 captive orangutans (Pongo abelii and Pongo pygmaeus) using a simulated food-processing task. Experimental subjects were shown I of 2 methods for removing a suite of defenses on an artificial fruit. Control subjects were given no prior exposure before interacting with the fruit. Observing a model provided a functional advantage in the task, as significantly more experimental than control subjects opened the fruit. Within the experimental groups, the authors found a trend toward differences in the actual behaviors used to remove I of the defenses. Results support observations from the wild implying horizontal transfer of information in orangutans and show that a number of social learning processes are likely to be involved in the transfer of knowledge in this species.
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