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Full-Text Articles in Psychology
Mechanisms Underlying The Response To Inequitable Outcomes In Chimpanzees, Pan Troglodytes, Sarah F. Brosnan, Catherine Talbot, Megan Ahlgren, Susan P. Lambeth, Steven J. Schapiro
Mechanisms Underlying The Response To Inequitable Outcomes In Chimpanzees, Pan Troglodytes, Sarah F. Brosnan, Catherine Talbot, Megan Ahlgren, Susan P. Lambeth, Steven J. Schapiro
Psychology Faculty Publications
Several species of non-human primates respond negatively to inequitable outcomes, a trait shared with humans. Despite previous research, questions regarding the response to inequity remain. In this study, we replicated the methodology from previous studies to address four questions related to inequity. First, we explored the impact of basic social factors. Second, we addressed whether negative responses to inequity require a task, or exist when rewards are given for ‘free’. Third, we addressed whether differences in the experimental procedure or the level of effort required to obtain a reward affected responses. Finally, we explored the interaction between ‘individual’ expectations (based …
Competing Demands Of Prosociality & Equity In Monkeys, Sarah F. Brosnan, Daniel Houser, Kristin Leimgruber, Erte Xiao, Tianwen Chen, Frans B.M. De Waal
Competing Demands Of Prosociality & Equity In Monkeys, Sarah F. Brosnan, Daniel Houser, Kristin Leimgruber, Erte Xiao, Tianwen Chen, Frans B.M. De Waal
Psychology Faculty Publications
Prosocial decisions may lead to unequal payoffs among group members. Although an aversion to inequity has been found in empirical studies of both human and nonhuman primates, the contexts previously studied typically do not involve a trade-off between pro-sociality and inequity. Here we investigate the apparent co-existence of these two factors, specifically the competing demands of prosociality and equity. We directly compare the responses of brown capuchin monkeys (Cebus apella) among situations where pro-social preferences conflict with equality, using a paradigm comparable to other studies of cooperation and inequity in this species. By choosing to pull a tray towards themselves, …