The Effect of Topically Administered Compounds on the Galvanic Skin Response**This study was aided by a grant from the G. D. Searle & Co., Chicago, IllinoisFrom the Division of Dermatology, Department of Medicine, University of California, Los Angeles, and the Medical Service, Veterans Administration Center, General Medical and Surgical Hospital, Los Angeles, California, and the Departments of Psychology and Engineering, University of California, Los Angeles, California.