title: [Analysis of cardiac activity during solution of a logical problem at different stages of ontogenesis].
authors: O O
authors: OO
authors: Iakimenko
authors: N P
authors: NP
authors: Popova
mesh_terms: D000293:Adolescent; D000328:Adult; D000375:Aging / Q000502:physiology*; D002648:Child; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D011340:Problem Solving / Q000502:physiology*
vernacular_title: Analiz serdechnoĭ deiatel'nosti pri reshenii logicheskoĭ zadachi na raznykh étapakh ontogeneza.