Age, state, and maternal behavior associated with infant vocalizations.
D000367:Age Factors; D002652:Child Behavior; D002657:Child Development; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008425:Maternal Behavior; D009034:Mother-Child Relations; D009043:Motor Activity; D012890:Sleep; D012919:Social Behavior; D013060:Speech; D014831:Voice; D014851:Wakefulness