1. Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Centre for Neuroscience, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
2. Nijmegen Institute for Scientist-Practitioners in Addiction (NISPA), 6525 HR Nijmegen, The Netherlands
3. Department of Human Media Interaction (HMI), University of Twente, 7500 AE Enschede, The Netherlands
4. Tactus, Centre for Addiction and Intellectual Disability, 7400 AD Deventer, The Netherlands
5. Aveleijn, 7622 GW Borne, The Netherlands
6. Behavioral Science Institute, Radboud University Nijmegen, 6525 GD Nijmegen, The Netherlands
7. Novadic-Kentron, Addiction Care Centre, 5261 LX Vught, The Netherlands