About the Authors

Sarah E. Maguire

Affiliations Department of Neuroscience, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America, Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Marc F. Schmidt

Affiliations Department of Neuroscience, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America, Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

David J. White

dwhite@wlu.ca

Affiliation Department of Psychology, Wilfrid Laurier University, Waterloo, Ontario, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SEM MFS DJW. Performed the experiments: SEM DJW. Analyzed the data: SEM DJW. Contributed reagents/materials/analysis tools: MFS. Wrote the paper: SEM MFS DJW.