The moral power of suggestion: A history of suggestion in Japan, 1900–1930

In Japan, as in the west, suggestion theory was the predominant theory of hypnosis, and suggestive therapy was one of the most important, if not the most important, form of psychotherapy in the early 20th century. While the use of suggestion was met with objections on both scientific and moral grounds in the west, it was seen in a more positive light and has had a significant influence on the development of psychotherapy in Japan. With regard to the contexts of suggestion, suggestive power, suggestibility, and the effects of suggestion, this study will examine the distinctive conceptions and practices of suggestion developed by analogy with existing ideas about interpersonal influence, particularly with the concept of kanka (assimilative transformation) in Japan. They provide an interesting comparison to the western ideas of suggestion, helping us understand the historical and cultural particularity of western dynamic psychiatry and psychotherapy, particularly their presumptions about interpersonal influence.