title: COMMENTS ON THE PLEASURE-UNPLEASURE EXPERIENCE. THE ROLE OF BIOLOGICAL FACTORS.
mesh_terms: D000223:Adaptation, Psychological; D001685:Biological Factors; D004644:Emotions; D006706:Homeostasis; D006801:Humans; D010146:Pain; D057181:Pleasure; D010990:Pleasure-Pain Principle; D011572:Psychoanalysis; D011613:Psychotherapy
chemical_list: D001685:Biological Factors
keywords: ADAPTATION, PSYCHOLOGICAL; EMOTIONS; HOMEOSTASIS; PAIN; PLEASURE-PAIN PRINCIPLE; PSYCHOANALYSIS