1. Center for Social and Affective Neuroscience, BKV, Linköping University, Linköping 581 85, Sweden.
2. Psychosomatic Medicine Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China.
3. Centre for Discovery Brain Sciences, University of Edinburgh, 1 George Square, Edinburgh EH8 9JZ, UK.
4. Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
5. Behavioral Neuroscience Branch Intramural Research Program, National Institute on Drug Abuse (NIDA), NIH, Baltimore, MD 21224, USA.
6. Waggoner Center for Alcohol and Addiction Research and Departments of Neuroscience and Neurology, University of Texas at Austin, Austin, TX 78712, USA.
7. Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, Netherlands.