About the Authors
Department of Psychology, Northwestern University, Evanston, Illinois, United States of America
Northwestern University Interdepartmental Neuroscience Program, Evanston, Illinois, United States of America
Smith College Neuroscience Program, Northampton, Massachusetts, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: JYC. Performed the experiments: JYC NEB HG. Analyzed the data: JYC NEB HG. Wrote the paper: JYC HG.