title: Infant and toddler development: active organization of the social world.
authors.affiliation: Harvard Medical School, Boston, Massachusetts.
authors.forename: M W
authors.initials: MW
authors.lastname: Yogman
authors.forename: K V
authors.initials: KV
authors.lastname: Cook
authors.forename: M
authors.initials: M
authors.lastname: Gersten
mesh_terms: D002657:Child Development; D003071:Cognition; D006801:Humans; D007223:Infant; D007804:Language Development; D009048:Motor Skills; D010465:Perception; D010553:Personality Development; D012677:Sensation