[1] Karolinska Inst, Dept Clin Neurosci, Nobels Vag 9, S-17177 Stockholm, Sweden
[2] Univ Mississippi, Med Ctr, Dept Psychiat & Human Behav, Jackson, MS 39216 USA
[3] Lund Univ, Dept Psychol, Lund, Sweden
[4] Univ Nebraska, Dept Psychol, Lincoln, NE 68588 USA
[5] Miami Univ, Dept Psychol, Oxford, OH 45056 USA