Early chemistry milestone that helped define psilocybin as a research compound.
Public-facing research trails for psilocybin and DMT.
We gathered these studies into a cleaner chronological library so people can follow the history, major milestones, and modern clinical work without losing the thread.
Read Sozo Handbook
A chronological map of modern psilocybin research.
Psilocybin was introduced into psychiatry as an investigational compound.
A turning point that narrowed formal access to psilocybin research.
International treaty that placed psychedelics under tighter global control.
Read publicationA landmark psychoactive trial involving 60 participants.
Read publicationJournal of Clinical Psychiatry study with 9 patients.
Read publicationArchives of General Psychiatry study with 12 patients.
Read publicationJournal of Psychopharmacology study with 15 participants.
Read publicationJournal of Psychopharmacology proof-of-concept study with 10 patients.
Read publicationLancet Psychiatry study with 19 patients.
Read publicationJournal of Psychopharmacology randomized trial with 29 patients.
Read publicationJournal of Psychopharmacology randomized trial with 51 patients.
Read publicationJournal of Psychopharmacology publication following a 2019 healthy-volunteer study with 89 participants.
Read publicationJAMA Psychiatry randomized clinical trial with 24 participants.
Read publicationNew England Journal of Medicine trial with 59 patients.
Read publicationConference posters summarizing data from 233 patients.
Read publicationNew England Journal of Medicine phase 2 study with 233 patients.
Read publicationA chronological map of modern DMT research.
Experientia report that helped establish DMT as a human psychoactive research compound.
Read publicationA short historical paper often cited in the first wave of human DMT literature.
Read publicationArch Gen Psychiatry paper from the modern reopening of controlled human DMT research.
Read publicationArch Gen Psychiatry report detailing the subjective response profile and rating scale findings.
Read publicationACS Chemical Neuroscience study reporting faster cued fear extinction, better retention, reduced immobility in forced-swim tests, and an antidepressant-like phenotype in rats, while also noting a sex-specific reduction in PFC dendritic spine density in female rats that was not seen in males.
Read publicationA modern lab-based human neurophysiology paper that helped renew mechanistic DMT research.
Read publicationJournal of Psychopharmacology field study with 35 experienced participants.
Read publicationNeuropsychopharmacology phase 1 study with 3 healthy controls and 7 participants with major depressive disorder.
Read publicationClinical pharmacology work linking plasma exposure to electrophysiologic changes.
Read publicationRandomized placebo-controlled Frontiers in Psychiatry trial that informed later depression dosing.
Read publicationScientific Reports analysis spanning placebo-controlled and prospective datasets totaling 30 healthy volunteers.
Read publicationThis rodent study tied within-session fear-extinction effects to infralimbic cortex 5-HT2A and 5-HT1A receptor signaling.
Read publicationDose-escalation healthy-volunteer research expanding the clinical picture around combined administration.
Read publicationNeuropsychopharmacology placebo-controlled crossover study with 22 participants.
Read publicationThe study linked reduced fear generalization and extinction benefits to infralimbic cortex BDNF-TrkB signaling in a preclinical rodent model.
Read publicationNature Medicine paper with 34 randomized participants showing rapid antidepressant effects with psychotherapeutic support.
Read publication