|6205||PATTERNS OF PAIN||PATTERNS OF PAIN||1977||color||28 min||vhs|| Authorities discuss various phenomena concerning the perception of pain in the nervous system. Dr. Ronald Melzack, Psychology, McGill University, describes the absence of pain perception by the wounded during battle. Dr. Bruce Pomeranz, Zoology, University of Toronto, examines the body's ability to release its own analgesic or endorphines together with the pharmacology of morphine and heroin. He also discusses pain control through hypnosis, acupuncture and yoga. Dr. Donald Richardson, Louisiana State University Medical School, explains some surgical techniques for implanting electrodes in the brain to block pain. Extensive surgical footage is shown together with the results of a successful operation.