Psychedelics and Human Evolution

Did psychedelics help make us human? Michael James Winkelman, PhD draws on anthropology, neuroscience, primate behaviour, and archaeology to build a rigorous, multi-faceted case for psilocybin’s role in the cognitive leap that shaped our species.

“This course examines a multi-faceted array of evidence — from primate behaviour and archaeological findings to cutting-edge neuroscience and clinical research — to build a serious, scholarly case for the profound impact of psychedelics on the story of our species. No prior knowledge of neuroscience or anthropology required.”

Trace the intertwined history of humans and psychedelics — from primate ancestors to the development of early hominid societies

Understand the neuroscience of psychedelic experience: serotonin, dopamine, altered consciousness, and the roots of enhanced creativity and social bonding

Examine psilocybin’s role in the evolution of shamanism, ritualistic behaviour, and the emergence of religious belief across cultures

Discover how psychedelics may have shaped the cognitive niche — enhancing visual processing, cognitive flexibility, and the development of shared mental models

Explore the dopaminergic personality and its link to shamanism, and how psilocybin’s influence on dopamine may have shaped human cooperation and social dynamics

Analyse the contemporary resurgence of psychedelic research and consider the ethical implications of integrating these substances into modern society

  • Introduction: Why Psychedelics Matter for Human Evolution
  • Evidence for Ancient Psilocybin Use: Archaeology and Primate Behaviour
  • Hominid Ecology and the Availability of Psychoactive Fungi
  • Origins and Evidence (QUIZ)
  • Serotonin, Dopamine, and the Neurochemistry of Psilocybin
  • Enhanced Visual Processing and the Emergence of Novel Mental Representations
  • Cognitive Flexibility, Creativity, and Social Bonding Under Psilocybin
  • Neurochemistry and Consciousness (QUIZ)
  • The Shamanic Paradigm: Cross-Cultural Evidence and Biological Roots
  • Psilocybin and the Development of Ritualistic Practice Across Cultures
  • Psychedelics and the Evolutionary Origins of Religion
  • Adapting to the Cognitive Niche: Social Intelligence and Visual Enhancement
  • Language, Symbolism, and the Construction of Shared Reality
  • Psilocybin as a Driver of Human Cooperative Behaviour
  • The Dopaminergic Personality: Shamanism, Risk-Taking, and Innovation
  • Empathy, Prosocial Behaviour, and the Evolution of Group Dynamics
  • Dopamine, Shamanism, and Social Bonds (QUIZ)
  • The Contemporary Psychedelic Renaissance: Therapeutic Research and Clinical Applications
  • Ethical and Societal Implications of Psychedelic Integration
  • Conclusion: Toward a More Conscious and Interconnected Future

Introduction: Why Psychedelics Matter for Human Evolution

Michael James Winkelman introduces the central argument of the course — that psychedelic substances, especially psilocybin mushrooms, played a significant role in the cognitive leap that distinguishes humans from other primates. A compelling orientation to the multi-disciplinary evidence ahead.

Michael Winkelman

Michael James Winkelman, PhD

Michael James Winkelman, Ph.D. (University of California–Irvine), M.P.H. (University of Arizona) is retired from the School of Human Evolution and Social Change at Arizona State University. Winkelman has spent his career on cross-cultural and interdisciplinary research on shamanism and its biological bases, resulting in landmark works including Shamans, Priests and Witches (1992) and Shamanism: A Biopsychosocial Paradigm of Consciousness and Healing (2010).

He addressed the therapeutic applications of psychedelics in his co-edited Psychedelic Medicine (2007) and Advances in Psychedelic Medicine (2019), and examined the intersection of psychedelics and religion in his co-authored Supernatural as Natural (2008). He currently researches psychedelics, sociality, and human evolution from central Brazil.

This course sits at the intersection of Pathway 02 — Psychedelics & Science and Pathway 05 — Consciousness & Spirituality, and pairs naturally with Dennis McKenna’s Stoned Ape Hypothesis (which approaches the same territory from a mycological and biochemical angle) and Wade Davis’s Shamanic Art of Healing (which extends the cultural and ceremonial dimensions). Together they form a comprehensive trilogy on psychedelics, consciousness, and human transformation.

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