[1] Univ Helsinki, Dept Psychiat, Hus 00029, Finland
[2] Univ Helsinki, Dept Physiol, Hus 00029, Finland
[3] Univ Helsinki, Cent Hosp, Hosp Children & Adolescents, Helsinki, Finland
[4] Tampere Univ Hosp, Dept Clin Neurophysiol, Tampere, Finland
[5] Univ Helsinki, Dept Psychiat, Hus 00029, Finland