[1] Royal Holloway Univ London, Lifespan Res Grp, Bedford Sq, London WC1B 3RA, England
[2] Univ Minho, Dept Psychol, Braga, Portugal
[3] Inst Mutuakiste Montsouris, Dept Adult & Young Adult Psychiat, Paris, France
[4] Univ Iowa, Iowa Depress & Clin Res Ctr, Iowa City, IA 52242 USA
[5] Univ Coll Dublin, Dept Psychol, Dublin 2, Ireland
[6] Wayne State Univ, Sch Med, Dept Psychiat & Behav Sci, Detroit, MI 48202 USA
[7] Univ Bordeaux, Ctr Hosp Charles Perrens, Dept Psychiat, Bordeaux, France
[8] Univ Florence, Dept Neurol & Psychiat Sci, I-50121 Florence, Italy
[9] Univ Zurich, CH-8006 Zurich, Switzerland
[10] Univ Keele, Postgrad Med Sch, Keele ST5 5BG, Staffs, England