title: Psychological interventions for chronic pain: a critical review. I. Relaxation training and biofeedback.
mesh_terms: D001521:Behavior Therapy; D001676:Biofeedback, Psychology / Q000502:physiology*; D003071:Cognition; D003216:Conditioning, Operant / Q000502:physiology; D004569:Electroencephalography / Q000523:psychology; D004576:Electromyography / Q000523:psychology; D006261:Headache / Q000523:psychology / Q000628:therapy; D006801:Humans; D008881:Migraine Disorders / Q000523:psychology / Q000628:therapy; D010146:Pain / Q000523:psychology; D059408:Pain Management; D011674:Pulse; D012064:Relaxation Therapy; D012881:Skin Temperature