About the Authors

Mary R. Lee

leemary@mail.nih.gov

Affiliation National Institute on Drug Abuse, Intramural Research Program, Baltimore, Maryland, United States of America

Courtney L. Gallen

Affiliation National Institute on Drug Abuse, Intramural Research Program, Baltimore, Maryland, United States of America

Xiaochu Zhang

Affiliation National Institute on Drug Abuse, Intramural Research Program, Baltimore, Maryland, United States of America

Colin A. Hodgkinson

Affiliation National Institute on Alcohol Abuse and Alcoholism, Intramural Research Program, Rockville, Maryland, United States of America

David Goldman

Affiliation National Institute on Alcohol Abuse and Alcoholism, Intramural Research Program, Rockville, Maryland, United States of America

Elliot A. Stein

Affiliation National Institute on Drug Abuse, Intramural Research Program, Baltimore, Maryland, United States of America

Christina S. Barr

Affiliation National Institute on Alcohol Abuse and Alcoholism, Intramural Research Program, Rockville, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ML XZ CG ES CB. Performed the experiments: XZ CH. Analyzed the data: ML CG XZ CB. Contributed reagents/materials/analysis tools: CH DG. Wrote the paper: ML CG CB.