title: REM sleep in four-month infants under home and laboratory conditions.
mesh_terms: D000367:Age Factors; D001007:Anxiety; D002652:Child Behavior; D002657:Child Development; D002940:Circadian Rhythm; D004569:Electroencephalography; D004777:Environment; D005260:Female; D006234:Handling, Psychological; D006801:Humans; D007223:Infant; D008297:Male; D012737:Sex Factors; D012895:Sleep, REM; D013315:Stress, Psychological; D014851:Wakefulness