[1] Semmelweis Univ, Inst Behav Sci, R-3400 Budapest, Hungary
[2] Univ Babes Bolyai, Dept Phys, Cluj Napoca, Romania
[3] Vadaskert Hosp, Sleep Lab, Budapest, Hungary
[4] Autism Fdn & Res Ctr, Budapest, Hungary
[5] Natl Inst Psychiat & Neurol, Budapest, Hungary