title: Colloquium on 'symbol formation'.
mesh_terms: D001007:Anxiety / Q000523:psychology; D003863:Depression / Q000523:psychology; D006801:Humans; D009769:Object Attachment; D011573:Psychoanalytic Interpretation; D011574:Psychoanalytic Theory; D012660:Semantics; D013561:Symbolism; D014473:Unconscious, Psychology