Perceptual diversity allows human beings to access knowledge through a variety of perceptual processes, rather than merely through everyday waking reality. Many of these perceptual processes are transrational altered states of consciousness (meditation, trance, dreams, imagination) and are not considered valid processes for accessing knowledge by science (which is based primarily upon quantification, reductionism, and the experimental method). According to Erika Bourguignon's (1973) research in the 1970s, approximately 90 percent of cultures have institutionalized forms of altered states of consciousness, meaning (...) that such types of consciousness are to be found in most human societies and are "normal." Now, however, transrational consciousness is being devalued in many societies as it is simultaneously being replaced by the monophasic consciousness of "developed" nations. Not only are we are losing (1) biodiversity (biocomplexity) in environments and (2) cultural diversity in societies, we also are losing (3) perceptual diversity in human cognitive processes. All three losses of diversity (bio, cultural, and cognitive) are interrelated.Cultures that value perceptual diversity are more adaptable than cultures that do not. Perceptually diverse cultures are better able to understand whole systems (because they use a variety of perceptual processes to understand systems) than are cultures that rely only on the scientific method, which dissects systems. They also are better stewards of their environments, because they grasp the value of the whole of biodiversity (biocomplexity) through transrational as well as scientific processes. Understanding through perceptual diversity leads to a higher degree of adaptability and evolutionary competence.From the perspective of an anthropologist who has worked with development organizations, development will continue to destroy perceptual diversity because it exports the dominant cognitive process of "developed" nations, i.e., monophasic consciousness. Destroying perceptual diversity, in turn, leads to the destruction of cultural diversity and biocomplexity. Drawing from research I conducted among traditional healers in Namibia, I conclude that development organizations need to listen to those who use transrational perceptual processes and also need to find a way to incorporate and validate perceptual diversity in their theoretical and applied frameworks. (shrink)

History is full of references to dancing plague, dance mania, ecstatic dance, collective effervescence, choreo mania, collective psychosis, and Tarantism. In each of these cases, groups of people come together in joint activity (typically dance) and reach a prolonged ecstatic state in which they cannot stop the movement. To this day, academic literature in medicine, psychology, history, and cognitive science has not been able to answer the question; why does ecstatic dance lead to a loss of executive control? I here (...) focus on the case of group dance and provide an enactive embodied account of the loss of executive control. I argue that dancing crowds are scaffolded, self-organizing, self-perpetuating, dynamical systems. Within such systems, the majority of affordances provided to the individual agent lead to the perpetuation of the system, leading to more dancing. The embodied impact of the crowd, as an emergent entity, on the individual also leads to change in the sense of agency. Dancers experience being “unable to stop” because the sense of “who” is initiating the movements changes within crowd dance interaction. If it is unclear who is moving, then the interaction is experienced as outside individual control. (shrink)

Using the theoretical constructs “biographical disruption” and “limit experience” and also methodological frameworks from autoethnography and discourse analysis, we discuss the divergent ways in which language and healing are conceptualized and performed, first in an American medical clinic and then by traditional healers in Kwara‘ae (Solomon Islands). Discourses at the Dallas clinic draw on allopathic and complementary medicine and in emphasizing a scientific approach to talk about illness and treatment, were found to create ambiguity in patients’ sense of their physical (...) and metaphysical identities. In contrast, Kwara‘ae healing involves disappearing into silence, in which the physical and metaphysical are never separated, and where healing occurs. (shrink)

The combination of ethnographic and cognitive neuroscience research provides considerable insight into the origin and symbolism of Native Californian rock art. Although made by different social groups for different purposes in various parts of the state, the ethnographic record demonstrates that the art depicts the mental imagery and somatic hallucinations of trance, taken to represent supernatural experiences. When this art is viewed from a cognitive neuroscience perspective, it suggests that the shamanistic state of consciousness was far from primarily "ecstatic," instead (...) often involving the generation of unpleasant emotions; and that biochemical changes during trance necessitated the making of rock art if the memory of these supernatural experiences was to be preserved. (shrink)