[1] Med Univ Vienna, Dept Psychiat & Psychotherapy, Vienna, Austria
[2] Univ Libre Bruxelles, Brussels, Belgium
[3] Psy Pluriel Ctr Europeen Psychol Med, Brussels, Belgium
[4] Free Univ Brussels, Sch Med, Brussels, Belgium
[5] Univ Bologna, Dept Biomed & NeuroMotor Sci, Bologna, Italy
[6] Chaim Sheba Med Ctr, Psychiat Div, Tel Hashomer, Israel
[7] Univ London, Imperial Coll, London, England
[8] Kings Coll London, Genet & Dev Psychiat Ctr, Inst Psychiat Psychol & Neurosci, London, England
[9] Med Univ Vienna, Ctr Brain Res, Spitalgasse 4, A-1090 Vienna, Austria