title: On the nature and development of affects: a unified theory.
mesh_terms: D000339:Affect; D000342:Affective Symptoms / Q000175:diagnosis / Q000209:etiology; D001007:Anxiety; D003674:Defense Mechanisms; D004532:Ego; D005619:Freudian Theory; D006801:Humans; D007062:Identification, Psychological; D007207:Individuation; D010146:Pain; D010990:Pleasure-Pain Principle; D011574:Psychoanalytic Theory; D013475:Superego; D013850:Thinking; D014474:Unconsciousness