Terence Turner , Emeritus Professor of Anthropology at the University of Chicago and Visiting Professor of Anthropology at Cornell University, has conducted research and worked as an activist with the Kayapo, a Ge-speaking people of Central Brazil, since 1962. His writings on the Kayapo cover social organization, kinship, myth, ritual, history, the construction of the person, ontological and epistemological aspects of representation and imagery, political organization and mobilization, values, and inter-ethnic relations. He has also published numerous papers on general theoretical topics, including critiques and developments of structural analysis and interpretationist approaches to ritual and myth, cosmology and social consciousness, the social construction of bodiliness, emotions and subjectivity, family structures and kinship terminology, the application of Marxian theory to anthropology, methodological and theoretical insights obtained from combining long term field work with controlled comparison in time and space, and the theoretical basis of anthropological approaches to human rights, multiculturalism, and activism in support of indigenous causes. He has made ethnographic films about the Kayapo with the British Broadcasting Company and Granada Television International. In 1990 he founded the Kayapo Video Project, through which the Kayapo have become able to shoot and edit videos about their own culture and encounters with Brazilian society.