[1] Univ Hosp Cologne, Dept Psychiat, Kerpener Str 62, D-50937 Cologne, Germany
[2] Ludwig Maximilians Univ Munchen, Med Fac, Dept Psychiat, Nussbaumstr 7, D-80336 Munich, Germany
[3] Ludwig Maximilians Univ Munchen, Inst Med Psychol, Med Fac, Goethestr 31, D-80336 Munich, Germany
[4] Univ Cologne, Dept Psychol, Gronewaldstr 2, D-50931 Cologne, Germany
[5] Humboldt Univ, Charite, Dept Psychiat, Soc Philosophy & Sci Psyche, Berlin, Germany
[6] Res Ctr Juelich, Cognit Neurosci INM 3, Inst Neurosci & Med, D-52425 Julich, Germany