History of research centers and professional hypnosis societies in the United States

The brief history of hypnosis in America begins with William James's chapter in his Principles of Psychology that got hypnosis off to a good start as a legitimate part of psychology. In the 20th century, before World War II, the idea of performing scientific investigations of hypnosis took place at Harvard University through William McDougall, at the University of Wisconsin and Yale University under Clark Hull, and, in its clinical aspects particularly, through the personal efforts of Milton H. Erickson. The resurgence after World War II is related to the use of hypnosis with war casualties during the war and with the development of clinical psychology. The aspects of the history emphasized here are the founding of continuing institutes and research centers, some theoretical cleavages that have persisted to this day, and the establishment of hypnosis societies with their journals, annual meetings, and workshops, including an International Society of Hypnosis. The history of Division 30 within the American Psychological Association brings the story up to date.