1. Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
2. Centre for Old Age Psychiatric Research, Innlandet Hospital Trust, Ottestad, Norway
3. Norwegian National Advisory Unit on Aging and Health, Vestfold Hospital Trust, T—nsberg, Norway
4. Faculty of Medicine, University of Oslo, Oslo, Norway
5. Department of Public Health and Nursing, HUNT Research Centre, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
6. Levanger Hospital, Nord-Tr–ndelag Hospital Trust, Norway
7. Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
8. Department of Radiology and Nuclear Medicine, Norwegian National Advisory Unit on Functional MRI, St. Olav’s Hospital, Trondheim, Norway
9. Norwegian Institute of Public Health, Oslo, Norway