About the Authors

Kimberley A. Phillips

To whom correspondence should be addressed. E-mail: phillipsk@hiram.edu

Affiliation Department of Psychology, Hiram College, Hiram, Ohio, United States of America

Chet C. Sherwood

Affiliation Department of Anthropology, The George Washington University, Washington, D. C., United States of America

Alayna L. Lilak

Affiliation Department of Psychology, Hiram College, Hiram, Ohio, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KP. Performed the experiments: KP CS AL. Analyzed the data: KP. Wrote the paper: KP CS.