1. Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, NTNU, Trondheim, Norway.
2. Department of Psychology, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, NTNU, Trondheim, Norway.
3. Department of Physical Medicine and Rehabilitation, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway.
4. Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway.
5. Department of Neurosurgery, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway.
6. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Spaulding Rehabilitation Hospital and Spaulding Research Institute, Home Base Program, Red Sox Foundation and Massachusetts General Hospital, Charlestown, Massachusetts, USA.