About the Authors

Mikael Gajecki

mikael.gajecki@ki.se

Affiliation Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden

Anne H. Berman

Affiliations Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden, Stockholm Center for Dependency Disorders, Stockholm, Sweden

Kristina Sinadinovic

Affiliations Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden, Stockholm Center for Dependency Disorders, Stockholm, Sweden

Claes Andersson

Affiliations Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden, Health and Society, Department of Criminology, Malmö University, Malmö, Sweden, Department of Clinical Sciences, Division of Psychiatry, Lund University, Lund, Sweden

Brjánn Ljótsson

Affiliation Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden

Erik Hedman

Affiliation Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden

Christian Rück

Affiliation Department of Clinical Neuroscience, Division of Psychiatry, Karolinska Institutet, Stockholm, Sweden

Nils Lindefors

Affiliation Department of Clinical Neuroscience, Division of Psychiatry, Karolinska Institutet, Stockholm, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AHB MG BL NL CR. Analyzed the data: MG KS CA AHB. Contributed reagents/materials/analysis tools: BL CR NL. Wrote the paper: MG AHB KS CA BL EH CR NL.