About the Authors

Kara K. Schroepfer

k.schroepfer@duke.edu

Affiliation Department of Evolutionary Anthropology, Duke University, Durham, North Carolina, United States of America

Alexandra G. Rosati

Affiliations Department of Evolutionary Anthropology, Duke University, Durham, North Carolina, United States of America, Center for Cognitive Neuroscience, Duke University, Durham, North Carolina, United States of America

Tanya Chartrand

Affiliations Fuqua School of Business, Duke University, Durham, North Carolina, United States of America, Department of Psychology and Neuroscience, Duke University, Durham, North Carolina, United States of America

Brian Hare

Affiliations Department of Evolutionary Anthropology, Duke University, Durham, North Carolina, United States of America, Center for Cognitive Neuroscience, Duke University, Durham, North Carolina, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KKS AGR TC BH. Performed the experiments: KKS. Analyzed the data: KKS AGR. Contributed reagents/materials/analysis tools: TC BH. Wrote the paper: KKS BH.