1. Institute of Neurosciences University of Barcelona Barcelona Catalonia Spain
2. Medical Psychology Unit, Department of Medicine University of Barcelona Barcelona Catalonia Spain
3. Institute of Biomedical Research August Pi i Sunyer (IDIBAPS) Barcelona Catalonia Spain
4. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED: CB06/05/0018‐ISCIII) Barcelona Barcelona Catalonia Spain
5. Edmond J. Safra Parkinson Disease Program & Morton and Gloria Shulman Movement Disorder Unit, Neurology Division University Health Network, University of Toronto Toronto Ontario Canada
6. Krembil Brain Institute University Health Network, University of Toronto Toronto Ontario Canada
7. Brain Health Imaging Centre, Campbell Family Mental Health Research Institute Centre for Addiction and Mental Health University of Toronto Toronto Ontario Canada
8. Department of Nuclear Medicine University of Cologne Cologne Germany
9. Department of Neurology University of Cologne Cologne Germany
10. Department of Psychology, Faculty of Health Sciences University of Deusto Bilbao Spain
11. Department of Neurology University Hospital Marburg Marburg Germany
12. Center for Mind, Brain and Behavior – CMBB Universities Marburg and Gießen Marburg and Gießen Germany
13. Department of Neurology Knappschaftskrankenhaus Bottrop Bottrop Germany
14. Department of Biomedicine University of Barcelona Barcelona Catalonia Spain
15. Centro de Investigación Biomédica en Red en Bioingeniería Biomateriales y Nanomedicina (CIBER‐BBN) Barcelona Catalonia Spain