title: To be or not to be separate: the meaning of hide-and-seek in forming internal representations.
authors.forename: A
authors.initials: A
authors.lastname: Bergman
mesh_terms: D002675:Child, Preschool; D005260:Female; D006801:Humans; D007207:Individuation; D007223:Infant; D007389:Internal-External Control; D008297:Male; D009034:Mother-Child Relations; D009769:Object Attachment; D010553:Personality Development; D010988:Play and Playthings; D011574:Psychoanalytic Theory; D011575:Psychoanalytic Therapy; D011618:Psychotic Disorders / Q000523:psychology