Dr. Sarah Brosnan is a Distinguished University Professor in the departments of psychology and philosophy and the Neuroscience Institute at Georgia State University, Co-Director of the Language Research Center, and Director of the 2CI in Primate Social Cognition, Evolution and Behavior Fellows program. She is also a member of the Brains & Behavior program and faculty in the Center for Behavioral Neuroscience. She directs the Comparative Economics and Behavioral Sciences Laboratory (CEBUS Lab) and conducts behavioral and cognitive research with nonhuman primates.

The CEBUS Lab utilizes an explicitly comparative approach to study the function of and mechanisms underlying decision-making. The lab looks across a variety of species,
particularly non-human primates, to explore the behavioral, cognitive and hormonal mechanisms underlying decision-making and how these decisions are influenced by ecology and the social environment.