[1] Univ Pavia, Dept Brain & Beav Sci, I-27100 Pavia, Italy
[2] Univ Oxford, Dept Psychiat, Oxford Ctr Human Brain Act, Oxford, England
[3] Radboud Univ Nijmegen, Dept Philosophy, NL-6525 ED Nijmegen, Netherlands
[4] Charite, Dept Psychiat, Berlin, Germany