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Great apes' risk-taking strategies in a decision making task

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haun2011plosone28801.pdf (237.2Kb)
Date
21/12/2011
Author
Haun, Daniel B. M.
Nawroth, Christian
Call, Josep
Keywords
Chimpanzees Pan-Troglodytes
Reversed-Contingency Task
Gorilla-Gorilla Perform
Pongo-Pygmaeus
Tool Use
Wild Chimpanzees
Rhesus Macaques
Macaca-Mulatta
Quantity
Orangutans
QL Zoology
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Abstract
We investigate decision-making behaviour in all four non-human great ape species. Apes chose between a safe and a risky option across trials of varying expected values. All species chose the safe option more often with decreasing probability of success. While all species were risk-seeking, orangutans and chimpanzees chose the risky option more often than gorillas and bonobos. Hence all four species' preferences were ordered in a manner consistent with normative dictates of expected value, but varied predictably in their willingness to take risks.
Citation
Haun , D B M , Nawroth , C & Call , J 2011 , ' Great apes' risk-taking strategies in a decision making task ' , PLoS One , vol. 6 , no. 12 , 28801 . https://doi.org/10.1371/journal.pone.0028801
Publication
PLoS One
Status
Peer reviewed
DOI
https://doi.org/10.1371/journal.pone.0028801
ISSN
1932-6203
Type
Journal article
Rights
© 2011 Haun et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Description
This research was funded by the Max Planck Society for the Advancement of Science. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/4595

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