Open Access. Powered by Scholars. Published by Universities.®

Social and Behavioral Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Psychology

Georgia State University

2013

Primates

Articles 1 - 2 of 2

Full-Text Articles in Social and Behavioral Sciences

Visual Processing Speed In Capuchin Monkeys (Cebus Apella) And Rhesus Macaques (Macaca Mulatta), Darby Proctor, Sarah F. Brosnan Jan 2013

Visual Processing Speed In Capuchin Monkeys (Cebus Apella) And Rhesus Macaques (Macaca Mulatta), Darby Proctor, Sarah F. Brosnan

Psychology Faculty Publications

Visual acuity is a defining feature of the primates. Humans can process visual stimuli at extremely rapid presentation durations, as short as 14 ms. Evidence suggests that other primates, including chimpanzees and rhesus macaques, can process visual information at similarly rapid rates. What is lacking is information on the abilities of New World monkeys, which is necessary to determine whether rapid processing is present across the primates or is specific to Old World primates. We tested capuchin (Cebus apella) and rhesus (Macaca mulatta) monkeys on a computerized matching-to-sample paradigm to determine the shortest presentation duration at …


Different Responses To Reward Comparisons By Three Primate Species, Hani D. Freeman, Jennifer Sullivan, Lydia M. Hopper, Catherine F. Talbot, Andrea N. Holmes, Nancy Schulz-Darken, Lawrence E. Williams, Sarah F. Brosnan Jan 2013

Different Responses To Reward Comparisons By Three Primate Species, Hani D. Freeman, Jennifer Sullivan, Lydia M. Hopper, Catherine F. Talbot, Andrea N. Holmes, Nancy Schulz-Darken, Lawrence E. Williams, Sarah F. Brosnan

Psychology Faculty Publications

Background: Recently, much attention has been paid to the role of cooperative breeding in the evolution of behavior. In many measures, cooperative breeders are more prosocial than non-cooperatively breeding species, including being more likely to actively share food. This is hypothesized to be due to selective pressures specific to the interdependency characteristic of cooperatively breeding species. Given the high costs of finding a new mate, it has been proposed that cooperative breeders, unlike primates that cooperate in other contexts, should not respond negatively to unequal outcomes between themselves and their partner. However, in this context such pressures may extend beyond …