[1] UCL, London, England
[2] Kings Coll London, Inst Psychiat Pscyhol & Neurosci, London, England
[3] MRC London Inst Med Sci, Psychiat Imaging, London, England
[4] UCL, Clin Psychopharmacol, London, England
[5] Imperial Coll London, Fac Med, London, England
[6] McGill Univ, Dept Psychol, Montreal, PQ, Canada
[7] Exeter Univ, Dept Psychol, Exeter, Devon, England