title: Development of ultradian periodicity and coalescence at 1 cycle per hour in electroencephalographic activity.
mesh_terms: D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D005133:Eye Movements; D005260:Female; D006339:Heart Rate; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010507:Periodicity; D012119:Respiration