DMT, a naturally occurring hallucinogen found in plants and animal tissues, may have biological functions beyond its psychedelic effects. Its role as an endogenous ligand of the sigma-1 receptor suggests involvement in cellular protective mechanisms, including effects on cellular bioenergetics, immunoregulation, and gene expression related to its synthesizing enzyme in carcinogenesis. The evidence indicates DMT is not merely a drug of abuse but an agent of adaptive mechanisms with potential for future medical therapies.
Ingesting the South American hallucinogenic beverage ayahuasca reduced the rate of perceptual alternations in a binocular rivalry task, increased the duration of one percept, and produced evidence of phenomenal fusion. These findings align with brain activation studies showing right cortical activation under hallucinogens and support the concept of interhemispheric fusion in altered states of consciousness, rather than the earlier theory of changes in hemispheric integration.