title: Electromyographic studies of tension.
mesh_terms: D001007:Anxiety; D001463:Barbiturates / Q000494:pharmacology; D003863:Depression / Q000188:drug therapy; D004576:Electromyography; D004644:Emotions; D005246:Feedback; D006801:Humans; D006990:Hypnosis; D008607:Intellectual Disability / Q000503:physiopathology; D009119:Muscle Contraction / Q000187:drug effects; D009120:Muscle Cramp / Q000209:etiology / Q000628:therapy; D011602:Psychophysiologic Disorders; D012063:Relaxation; D012559:Schizophrenia / Q000503:physiopathology; D013315:Stress, Psychological
chemical_list: D001463:Barbiturates