Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Entire DC Network
Comparative Approaches To Studying Strategy: Towards An Evolutionary Account Of Primate Decision Making, Sarah F. Brosnan, Michael J. Beran, Audrey E. Parrish, Sarah A. Price, Burt J. Wilson
Comparative Approaches To Studying Strategy: Towards An Evolutionary Account Of Primate Decision Making, Sarah F. Brosnan, Michael J. Beran, Audrey E. Parrish, Sarah A. Price, Burt J. Wilson
Psychology Faculty Publications
How do primates, humans included, deal with novel problems that arise in interactions with other group members? Despite much research regarding how animals and humans solve social problems, few studies have utilized comparable procedures, outcomes, or measures across different species. Thus, it is difficult to piece together the evolution of decision making, including the roots from which human economic decision making emerged. Recently, a comparative body of decision making research has emerged, relying largely on the methodology of experimental economics in order to address these questions in a cross-species fashion. Experimental economics is an ideal method of inquiry for this …
Chimpanzees Play The Ultimatum Game, Darby Proctor, Rebecca A. Williamson, Frans B.M. De Waal, Sarah F. Brosnan
Chimpanzees Play The Ultimatum Game, Darby Proctor, Rebecca A. Williamson, Frans B.M. De Waal, Sarah F. Brosnan
Psychology Faculty Publications
Is the sense of fairness uniquely human? Human reactions to reward division are often studied by means of the Ultimatum Game (UG), in which both partners need to agree on a distribution for both to receive rewards. Humans typically offer generous portions of the reward to their partner, a tendency our close primate relatives have thus far failed to show in experiments. Here, we tested chimpanzees (Pan troglodytes) and human children on a modified UG. One individual chose between two tokens that, with their partner's cooperation, could be exchanged for rewards. One token offered equal rewards to both players, whereas …
How Fairly Do Chimpanzees Play The Ultimatum Game?, Darby Proctor, Sarah F. Brosnan, Frans B.M. De Waal
How Fairly Do Chimpanzees Play The Ultimatum Game?, Darby Proctor, Sarah F. Brosnan, Frans B.M. De Waal
Psychology Faculty Publications
Humans can behave fairly, but can other species? Recently we tested chimpanzees on a classic human test for fairness, the Ultimatum Game, and found that they behaved similarly to humans. In humans, Ultimatum Game behavior is cited as evidence for a human sense of fairness. By that same logic, we concluded that chimpanzees behaved fairly in our recent study. However, we make a distinction between behavior and motivation. Both humans and chimpanzees behaved fairly, but determining why they did so is more challenging.