title: Cardiac functioning and reaction time in relation to age.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001307:Auditory Perception; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006801:Humans; D008297:Male; D010507:Periodicity; D011930:Reaction Time; D013016:Sound; D013997:Time Factors