title: The role of hearing in early ego organization.
mesh_terms: D001307:Auditory Perception; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D004532:Ego; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011574:Psychoanalytic Theory; D011575:Psychoanalytic Therapy