New considerations of the infantile acquisition of language and symbolic thought.
D000367:Age Factors; D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D005260:Female; D006801:Humans; D007223:Infant; D007804:Language Development; D009769:Object Attachment; D011574:Psychoanalytic Theory; D011606:Psychosexual Development