Darby Proctor, Ph.D.

Assistant Professor

School of Psychology, Florida Institute of Technology, Melbourne, FL


B.A., Biological Anthropology, University of Florida, Gainesville, FL, 2002
M.S., Business Management, University of Florida, Gainesville, FL, 2003

M.A., Biological Anthropology, Georgia State University, Atlanta, GA 2007
Ph.D., Psychology - Cognitive Sciences, Georgia State University, Atlanta, GA 2012
FIRST Postdoctoral Fellow, Yerkes Primate Research Center, Developmental and Cognitive Neuroscience, Emory University, 2012-2015

Research Statement

My research interests are in the decision-making processes of nonhuman primates under circumstances of risk. I use behavioral economics as a platform for which to explore these issues. Currently, I am working on a series of gambling style tasks to elucidate risk preferences in our closest living relative, the chimpanzee. I am particularly interested in how these decision-making processes are influenced by the social dynamics within chimpanzee groups. My research is conducted at the Yerkes National Primate Research Center with Frans de Waal.

In addition to research, I am interested in facilitating better communication between scientists and the public in both formalized (e.g., teaching) and informal (e.g., public outreach) settings.



Proctor, D., Williamson, R.A., Latzman, R. A., and Brosnan, S.F. (2014) Gambling primates: Reactions to a modified Iowa gambling task in humans, chimpanzees and capuchin monkeys. Animal Cognition, 17:983-95. PMCID: PMC4137781

Proctor, D., Williamson,, R.A, de Waal, F.B., Brosnan, S.F. (2013) Reply to Henrich and Silk: Toward a unified explanation for apes and humans. Proc Natl Acad Sci U S A.; 110:E3050. PMCID: PMC3746903

Proctor, D., Williamson, R.A., de Waal, F.B., Brosnan, S.F. (2013) Reply to Jensen et al.: Equitable offers are not rationally maximizing. Proc Natl Acad Sci USA;110:E1838. PMCID: PMC3657811

Proctor, D., Brosnan, S.F., de Waal, F.B. (2013) How fairly do chimpanzees play the ultimatum game? Commun Integr Biol.; 6:e23819. PMCID: PMC3656016

Proctor, D., Williamson, R.A., de Waal, F.B.M., & Brosnan, S.F. (2013) Chimpanzees play the ultimatum game. Proc Nat Acad Sci;110:2070-5. PMCID: PMC3568338

Salwiczek, L.H., Prétôt, L., Demarta, L., Proctor, D., Essler, J., Pinto, A.I., Wismer, S., Stoinski, T., Brosnan, S.F., Bshary, R. (2012)  Adult Cleaner Wrasse Outperform Capuchin Monkeys, Chimpanzees and Orangutans in a Complex Foraging Task Derived from Cleaner - Client Reef Fish Cooperation. PLoS One. 7:e49068. PMCID: PMC3504063

Proctor, D.P., Lambeth, S.P., Schapiro, S.J., Brosnan, S.F. (2011) Male chimpanzees' grooming rates vary by female age, parity, and fertility status.  Am J Primatol. 73:989-96. PMCID: PMC3166388

Proctor, D. and Brosnan, SF. (2011). Political Primates: What Other Primates Can Tell Us about the Evolutionary Roots of Our Own Political Behavior. In: Man is by Nature a Political Animal. Ed. R. Mcdermott and P. Hatemi. Cambridge University Press. Cambridge.

Horner, V., Proctor, D., Bonnie, K.E., Whiten, A., de Waal, F.B. (2010) Prestige affects cultural learning in chimpanzees.  PLoS One. 5:e10625. PMCID: PMC2873264


Florida Institute of Technology
School of Psychology
Harris Commons (710FTC), Room 238
150 W. University Blvd.
Melbourne, FL 32901 
Email: dproctor@fit.edu
Curriculum Vita

Emory University School of Medicine
Department of Physiology
Atlanta, GA 30322-3110
(404) 727-7410 Office ~ (404) 727-2648 FAX

For questions or comments, contact the webmaster at beverly.medley@emory.edu.