About the Authors

Stephan Steidl

ssteidl@nida.nih.gov

Current address: Behavioral Neuroscience Research Branch, National Institute on Drug Abuse, National Institutes of Health, Baltimore, Maryland, United States

Affiliations Department of Psychology, University of Toronto, Toronto, Ontario, Canada, Centre for Biological Timing and Cognition, University of Toronto, Toronto, Ontario, Canada

Anthony D. Miller

Affiliation Department of Psychology, University of Memphis, Memphis, Tennessee, United States of America

Charles D. Blaha

Affiliation Department of Psychology, University of Memphis, Memphis, Tennessee, United States of America

John S. Yeomans

Affiliations Department of Psychology, University of Toronto, Toronto, Ontario, Canada, Centre for Biological Timing and Cognition, University of Toronto, Toronto, Ontario, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SS ADM CDB JSY. Performed the experiments: SS ADM. Analyzed the data: SS ADM. Contributed reagents/materials/analysis tools: CDB JSY. Wrote the paper: SS ADM CDB JSY.