1. Institute of Medical Psychology and Behavioral Neurobiology, MEG Center, University of Tuebingen, Tuebingen, Germany
2. Health Technologies Department, TECNALIA, San Sebastian, Spain
3. Department of Psychiatry and Psychotherapy, University of Tuebingen, Tuebingen, Germany
4. Ospedale San Camillo, Istituto di Ricovero e Cura a Curattere Scientifico, IRCCS, Venezia, Italy