RT Article T1 Shamanic Microscopy: Cellular Souls, Microbial Spirits JF Anthropology of consciousness VO 29 IS 1 SP 8 OP 43 A1 Giraldo Herrera, César E. LA English PB American Anthropological Association YR 2018 UL https://ixtheo.de/Record/1588142736 AB In Amerindian ontologies, hallucinations or visions, rather than being dismissed as delusions or symbolic constructs, are recognized as means of perceptual access to physical reality. Lowland South American shamans claim to be able to diagnose and treat infectious diseases, and to assess the status of wildlife resources through interactions with pathogenic agents perceived in visions. This essay examines some perceptual capabilities that shamans might be employing to explore their physical reality. The structure of the eye affords a form of microscopy of retinal structures and of objects flowing within them, including cells and microbial agents during systemic infection. Lowland South American shamanic practices involve optical and physiological conditions that optimize entoptic microscopy. Images of those visions display the characteristic features of shadow formation, confirming their microscopic origin. This phenomenological access to the microscopic world and similarities with the panorama depicted by current microbiology indicate the commensurability of these forms of knowledge. K1 entoptic vision K1 MICROSCOPY K1 ontological commensurability K1 phosphenes K1 shamanic vision DO 10.1111/anoc.12087