About the Authors

Erin N. Cannon

ecannon@umd.edu

Affiliation Department of Human Development and Quantitative Methodology, University of Maryland, College Park, College Park, Maryland, United States of America

Kathryn H. Yoo

Affiliation Department of Human Development and Quantitative Methodology, University of Maryland, College Park, College Park, Maryland, United States of America

Ross E. Vanderwert

Affiliation Laboratories of Cognitive Neuroscience, Division of Developmental Medicine, Children's Hospital Boston, Boston, Massachusetts, United States of America

Pier F. Ferrari

Affiliation Dipartimento di Neuroscienze, Università di Parma, Parma, Italy

Amanda L. Woodward

Affiliation Department of Psychology, University of Chicago, Chicago, Illinois, United States of America

Nathan A. Fox

Affiliation Department of Human Development and Quantitative Methodology, University of Maryland, College Park, College Park, Maryland, United States of America

Competing Interests

The authors declare that co-author Pier Francesco Ferrari is a PLOS ONE Editorial Board member. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: ENC REV PFF ALW NAF. Performed the experiments: ENC. Analyzed the data: ENC KY. Wrote the paper: ENC REV PFF ALW NAF KY.