[1] Univ Southampton, Div Clin Neurosci, Univ Dept Mental Hlth, RSH Hosp, Southampton SO14 0YG, Hants, England
[2] Univ Manchester, Dept Psychiat, Manchester, Lancs, England
[3] Univ Bristol, Psychopharmacol Unit, Bristol, Avon, England
[4] Univ Gottingen, Dept Psychiat & Psychotherapy, D-3400 Gottingen, Germany
[5] Kings Coll London, Inst Psychiat, London WC2R 2LS, England
[6] Duke Univ, Med Ctr, Dept Psychiat & Behav Sci, Durham, NC USA
[7] Univ Groningen, Med Ctr, Sch Behav & Cognit Neurosci, Groningen, Netherlands
[8] Univ Hertfordshire, Dept Psychiat, Welwyn Garden City, Herts, England
[9] Tech Univ Dresden, D-8027 Dresden, Germany
[10] Max Planck Inst Psychiat, D-80804 Munich, Germany