[1] Univ Oslo, Dept Psychol, Oslo, Norway
[2] Norwegian Univ Sci & Technol, Dept Psychol, N-7034 Trondheim, Norway
[3] Diakonhjemmet Hosp, Dept Psychiat, Oslo, Norway
[4] Harvard Univ, Sch Med, Boston, MA USA
[5] Univ Wisconsin Madison, Madison, WI USA
[6] Modum Bad Psychiat Ctr, Res Inst, Vikersund, Norway