About the Authors

Wendy Swift

Contributed equally to this work with: Wendy Swift, Alex Wong

w.swift@unsw.edu.au

Affiliation National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia

Alex Wong

Contributed equally to this work with: Wendy Swift, Alex Wong

Affiliation Discipline of Pharmacology, University of Sydney, Sydney, NSW, Australia

Kong M. Li

Affiliation Discipline of Pharmacology, University of Sydney, Sydney, NSW, Australia

Jonathon C. Arnold

Affiliations Discipline of Pharmacology, University of Sydney, Sydney, NSW, Australia, Brain and Mind Research Institute, University of Sydney, Sydney, NSW, Australia

Iain S. McGregor

Affiliation School of Psychology, University of Sydney, Sydney, NSW, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WS AW KML JCA ISM. Performed the experiments: AW KML JCA ISM. Analyzed the data: WS AW ISM. Contributed reagents/materials/analysis tools: AW KML JCA ISM. Wrote the paper: WS AW ISM.