About the Authors

James M. Bjork

jbjork@mail.nih.gov

Affiliation Division of Clinical Neuroscience and Behavioral Research, National Institute on Drug Abuse, National Institutes of Health, Bethesda, Maryland, United States of America

Ashley R. Smith

Affiliation Laboratory of Clinical and Translational Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, United States of America

Gang Chen

Affiliation Scientific and Statistical Computing Core, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, United States of America

Daniel W. Hommer

Affiliation Laboratory of Clinical and Translational Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JMB. Performed the experiments: JMB ARS. Analyzed the data: JMB GC. Contributed reagents/materials/analysis tools: ARS GC DH. Wrote the paper: JMB DH.