1. International Gaming Research Unit, Psychology Department, Nottingham Trent University, Nottingham, UK
2. Laboratory for Experimental Psychopathology, Institut de recherche en sciences psychologiques, Université catholique de Louvain, Louvain-La-Neuve, Belgium
3. Department of Social Services and Rehabilitation, Oulu University of Applied Sciences, Oulu, Finland
4. Research Unit of Nursing Science and Health Management, Oulu University Hospital, University of Oulu, Oulu, Finland
5. Research Unit of Nursing Science and Health Management, Oulu University Hospital, Oulu, Finland