1. Medical Psychology Unit, Department of Medicine, Institute of NeuroscienceUniversity of BarcelonaBarcelona Catalonia Spain
2. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Hospital Clínic de BarcelonaBarcelona Catalonia Spain
3. Movement Disorders Unit, Neurology Service, Hospital Clínic de Barcelona. Institute of Neuroscience, University of BarcelonaBarcelona Catalonia Spain
4. Institute of Biomedical Research August Pi i Sunyer (IDIBAPS)Barcelona Catalonia Spain