1. Department of Psychology, Umeå University, Umeå, Sweden
2. Department of Social and Psychological Studies, Karlstad University, Karlstad, Sweden
3. Academic Unit for Psychiatry of Old Age, University of Melbourne, Parkville, Australia
4. Department of Social Sciences, Technology and Arts, Luleå University of Technology, Luleå, Sweden
5. Department of Health, Education and Technology, Luleå University of Technology, Luleå, Sweden