A new paper exploring the role of psilocybin mushrooms in the evolution of human consciousness says the psychedelic has the “potential to trigger significant neurological and psychological effects” that could have influenced the development of our species over time.
The literature review, which authors said draws on “a multidisciplinary approach spanning biology, ethnobotany and neuroscience,” examined studies involving psilocybin and human consciousness published in multiple journals in different fields. Their 12-page report highlights views that mushrooms played a crucial role in getting humans to where we are today.
“The hypothesis that psilocybin mushrooms may have intervened as a factor in the evolution of human consciousness, either as catalysts of mystical experiences or as drivers of cognitive processes, raises profound reflections on the ancestral interaction between human beings and their environment,” the authors wrote, according to a translation from the original Spanish. “The origin of human consciousness is one of the great questions facing man, and the material collected indicates that psilocybin may have contributed to its early development.”
As humans’ ancestors moved from forested environments into grasslands, they encountered more hoofed animals—and their excrement. In that excrement, they likely found mushrooms, including psilocybin mushrooms, says the study, citing researchers such as Terrence McKenna, who explored the so-called “stoned ape” theory that psychedelics helped spur human development.
Consuming mushrooms may have subsequently influenced pre-human hominids’ brains in all sorts of ways, authors wrote, such as improving hunting and food-gathering as well as increasing sexual stimulation and mating opportunities.
Changes like those, combined with the effects of psilocybin on human consciousness and brain function, could have expanded the human mind, “allowing us to transcend our basic perception and embrace creativity, introspection and abstract thinking” and potentially influencing language development, the study, published last month by the Miguel Lillo Foundation, a research organization in Argentina, says.
“Considering the importance of psilocybin mushrooms in the interaction with human consciousness, it is crucial to explore both their brain and evolutionary implications,” the authors—Jehoshua Macedo-Bedoya of the University Nacional Mayor de San Marcos, in Lima, Peru, and Fatima Calvo-Bellido of the Pontifical Catholic University of Peru—concluded.