title: Instinct theory, object relations, and psychic-structure formation.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004532:Ego; D006801:Humans; D007207:Individuation; D007323:Instinct; D009289:Narcissism; D009769:Object Attachment; D010553:Personality Development; D010554:Personality Disorders / Q000523:psychology; D011574:Psychoanalytic Theory; D011575:Psychoanalytic Therapy