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Article

Scrounging facilitates social learning in common marmosets, Callithrix jacchus

Citation
Caldwell CA & Whiten A (2003) Scrounging facilitates social learning in common marmosets, Callithrix jacchus. Animal Behaviour, 65 (6), pp. 1085-1092. https://doi.org/10.1006/anbe.2003.2145

Abstract
We investigated the effect of close social interaction on the ability to learn a new behaviour via observation. The task chosen involved sliding a small door horizontally to gain access to a food reward. We divided 59 common marmosets into five groups that received different pretest experience: observation of a trained demonstrator through wire mesh (O); joint interaction with a trained demonstrator allowing the possibility of scrounging (S); individual interaction with the apparatus (I); joint interaction with another naı̈ve individual (J); and no prior experience (control, C). Significantly more individuals from the scrounging group learned the new behaviour, compared with the group (O) that had purely observational experience. When animals from group O were later allowed to interact jointly with a trained demonstrator, the success rate of this group significantly increased. Social interaction with the demonstrator may have facilitated learning because it allowed subjects to understand the relation between the apparatus and the food or because social support facilitated interaction with the apparatus. However, results from the other conditions suggest that these factors alone do not account for the size of the effect. Thus, contrary to previous investigations of this phenomenon, scrounging facilitated social learning. This result probably depended on a complex interaction of a number of factors, including individual learning opportunities, social support and closer attention to the demonstrator.

Journal
Animal Behaviour: Volume 65, Issue 6

StatusPublished
Author(s)Caldwell, Christine Anna; Whiten, Andrew
Publication date30/06/2003
PublisherElsevier
ISSN0003-3472
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