The efficacy of progressive relaxation in systematic desensitization and a proposal for an  alternative competitive response--the relaxation response.
D001341:Autonomic Nervous System / Q000502:physiology; D001521:Behavior Therapy / Q000379:methods*; D003887:Desensitization, Psychologic / Q000379:methods*; D006801:Humans; D007266:Inhibition, Psychological; D009119:Muscle Contraction; D009126:Muscle Relaxation; D010698:Phobic Disorders / Q000534:rehabilitation