MS of a man and woman hooked up to biofeedback equipment in a dark room. CU of woman with an electrode on her head. CU of electrode attached to a woman's hand. CU of a temperature meter on the biofeedback equipment. The man and woman are attempting to warm up their hands with the use of their brain. CU into a two shot of Dr. Elmer Green's wife and a woman. Dr. Green's wife uses hypnotic suggestions to help the woman warm her hands. CU of woman with an electrode on her forehead. MS of Dr. Green's wife and a woman. CU of electrode on the female patient's finger; camera pans to the temperature meter on the biofeedback equipment. The men and women attempt to cool their heads with the use of his or her brain. CU of woman with an electrode on her forehead. CU of a different woman with an electrode on her forehead. CU of a temperature meter on the biofeedback equipment. CU of bearded man with glasses that has an electrode on his forehead. CU of woman with an electrode on her forehead. MS of a man and two women sitting around a table. The men and women are hooked up to biofeedback equipment.