Relationships between infants' social behavior and their mothers' behavior.
D000300:Adoption; D001290:Attitude; D002652:Child Behavior; D002657:Child Development; D002668:Child Rearing; D005106:Exploratory Behavior; D005260:Female; D006801:Humans; D007223:Infant; D007224:Infant Care; D008297:Male; D008425:Maternal Behavior; D009034:Mother-Child Relations; D012737:Sex Factors; D012919:Social Behavior; D012923:Social Class; D012931:Social Environment