1. Knoebel Institute for Healthy Aging, University of Denver, Denver, CO, USA
2. Theme Aging, Karolinska University Hospital, Stockholm, Sweden
3. Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
4. Department of Psychology, Linnaeus University, Växjö, Sweden
5. Department of Computer Science and Media Technology, Linnaeus University, Växjö, Sweden
6. Department of Neurosciences, Medical University of South Carolina, Charleston, SC, USA
7. Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA