title: Eye movement frequencies and related paradoxical sleep cycles: developmental changes.
mesh_terms: D002648:Child; D002675:Child, Preschool; D002940:Circadian Rhythm; D004314:Down Syndrome / Q000503:physiopathology; D005133:Eye Movements; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000503:physiopathology; D008607:Intellectual Disability / Q000503:physiopathology; D010507:Periodicity; D010927:Placental Insufficiency / Q000503:physiopathology; D011247:Pregnancy; D012895:Sleep, REM / Q000502:physiology*; D013997:Time Factors