, dehumanization, and loss of self-identity. This amorphous sense of disenchantment was given a concrete focus in 1959-1960 when the U.S.-Japan Mutual Defense Treaty (Nichibei Anzen Hosho Joyaku, or AMPO for short)16 came up for a ten year renewal. The widespread debate and demonstrations that the controversial treaty occasioned acted as a catalyst for change in a number of areas, and Ankoku Buto was one of the first of the new artistic forms that emerged to challenge Western culture's hegemony. 15For this description of the performance of Forbidden Col ors 1 am indebted to Goda, "On Ankoku ButB," pp. 127-8. 16For an historical discussion of the 1960 Security Treaty Crisis, see e R. Packard, Protest in Tokyo: The Security Treaty Crisis of 1960 (Princeton: Princeton University Press, 1966).