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