[1] Linkoping Univ, Dept Behav Sci, Linkoping, Sweden
[2] Stockholm Univ, Dept Psychol, S-10691 Stockholm, Sweden
[3] Uppsala Univ, Dept Psychol, Uppsala, Sweden
[4] Umea Univ, Umea Ctr Funct Brain Imaging, Umea, Sweden
[5] Umea Univ, Ctr Populat Studies Ageing & Living Condit, Umea, Sweden
[6] Umea Univ, Dept Clin Sci, Umea, Sweden
[7] Karolinska Inst, Dept Clin Neurosci, Stockholm, Sweden