[1] Kings Coll London, Dept Psychol, Inst Psychiat Psychol & Neurosci IoPPN, De Crespigny Pk, London SE5 8AF, England
[2] Univ Bath, Dept Psychol, Bath BA2 7AY, Avon, England
[3] Bethlem Royal & Maudsley Hosp, South London & Maudsley NHS Fdn Trust, Monks Orchard Rd, Beckenham BR3 3BX, Kent, England
[4] Kings Coll London, Dept Biostat & Hlth Informat, Inst Psychiat Psychol & Neurosci IoPPN, De Crespigny Pk, London SE5 8AF, England
[5] Kings Coll London, Sch Populat Hlth & Environm Sci, London SE1 1UL, England