[1] Kings Coll London, Inst Psychiat, Dept Psychol Med, Sect Brain Maturat PO 50, London SE5 8AF, England
[2] Univ Cambridge, Dept Psychiat, Brain Mapping Unit, Cambridge CB2 1TN, England
[3] Kings Coll London, Guys & St Thomas Hosp, Dept Womens Hlth, London SE5 8AF, England
[4] Kings Coll London, Inst Psychiat, Ctr Neuroimaging Sci, Brain Image Anal Unit, London SE5 8AF, England
[5] Kings Coll London, Inst Psychiat, Dept Biostat & Comp, London SE5 8AF, England
[6] Univ Illinois, Dept Psychiat, Chicago, IL 60612 USA