See below for information about psychedelic research around the world not sponsored by MAPS.
The studies listed here are limited to those in which psychedelics are administered to human subjects. Studies that compare psychedelic drug users to non-drug users are generally not included, nor are animal studies. Inclusion on this page does not indicate that a project is supported by or affiliated with MAPS.
See our World Wide Web Psychedelic Bibliography for a comprehensive archive of past psychedelic research, including all clinical therapeutic studies as well as other human and animal studies.
If you would like more information about these studies or to alert us to studies not included here, please contact MAPS Research and Information Specialist Ilsa Jerome, Ph.D..
Other Ayahuasca Research
- Effects of Ayahuasca on Brain Activity
- Assessing the role of the Serotonin-2A receptor in Ayahuasca Effects in Humans
- Long Term Outcomes of Substance Abuse Treatment at Takiwasi Center
- Pharmacological Study of Ayahuasca in Healthy Volunteers
- Study of Neurofunctional Changes After Ayahuasca Intake
- Exploring Personality, Phenomenological, and EEG Correlates of the Ayahuasca Journey Experience
- Ayahuasca in the Treatment of Substance Abuse
- A Study of Uniao do Vegetal (UDV) Adolescents
- Effects of ayahuasca on psychometric measures of anxiety, panic-like and hopelessness in Santo Daime
- The therapeutic potential of substance abuse treatment with Ayahuasca-a qualitative study
- EEG of Long-Term Ayahuasca Drinkers vs. Matched Controls
- Investigations on the Human Psychopharmacology of Ayahuasca: Phase I
Other Cross Cultural and Meta-Analysis Research
- A Biochemical Bridge to the Embodied Psyche
- Yes, Mom Took Acid: The Sociohistorical Influence of Prior Psychedelic Drug
- Northwest Amazonian Ayahuasca Shamanism and Near-Death Experience
- Guided, Structured, Group Use of Entheogenic Substances in Western Culture
Other DMT Research
Other Ibogaine Research
- Ibogaine Treatment Study with Addiction
- Safety Studies in Preparation for Proposed Study of Ibogaine Therapy in the Treatment of Cocaine Addiction
Other Ketamine Research
- Meditation with Salvia DivinorumSalvinorin A
- Experiments in Altered Perception of 3-D Visual Illusions as a Screening Method for Psychedelic
- Ketamine Psychedelic Therapy in the Treatment of Heroin Addiction
- Psychedelic Effects of Ketamine in Healthy Volunteers
- Ketamine Psychedelic Therapy in the Treatment of Alcoholics
- The Relationship Between Subjective Effects Induced by a Single Dose of Ketamine and Treatment Response in Patients With Major Depressive Disorder: A Systematic Review
Other Kratom Research
- Full Spectrum Knowing: Comparing the Mind-Body-World Benefits and Risks of Natural (Kratom) and Synthetic (Oxycodone) Psychoactive Substances for Potential Integrative Techniques in Medicine (View Abstract)
Other LSA Research
Other LSD Research
- Psilocybin and LSD in the Treatment and Prevention of Cluster Headaches
- Receptor Profiles of Lysergamides Related to LSD
- Follow-up Study of Bastiaans LSD Therapy
- Psycholytic Therapy with MDMA and LSD in Switzerland
- A Critical Review of Theories and Research Concerning LSD
- Follow-up Study of Janiger LSD Research
Other MDE Research
- The Psychological, Neuroendocrine, Cardiovascular
- Differential Cognitive and Brain Activation Effects of the Isomers of MDE
- Psychobiologic Effects of MDMA in Humans
- MDMA and Memory
Other MDMA Research
- MDMA and the Noradrenergic System
- The Positive Effects of MDMA
- Physiological Correlates of PTSD Before and After MDMA-Assisted Therapy
- Pharmacology and Pharmacokinetics of Two Doses of MDMA
- Acute and Subacute Effects of MDMA and Methamphetamine in Healthy Volunteers
- Acute Effects of MDMA on Impulsivity, Memory, and Actual Car Driving
- Effects of MDMA Alone and Combined with THC or Ethanol
- Is Ecstasy An Empathogen? Determinants of Drug Preference in Humans
- MDMA Dose Response Study in Cancer Patients with Anxiety
- Serotonin and Dopamine System Interactions in the Reinforcing Properties of Psychostimulants
- Behavioral Effects of MDMA Related to Driving Ability
- Effects of MDMA
- Effects of MDMA (Ecstasy) on Prepulse Inhibition and Habituation
- MDMA Pharmacokinetics and Pharmacodynamics in Humans
- Clinical Pharmacology of the Interaction between Alcohol and MDMA
- Mood State and Brain Electric Activity in Ecstasy Users
- Pharmacological Effects of MDMA in Humans
- Low-dose MDMA
- Psycholytic Therapy with MDMA and LSD in Switzerland
- Acute efffects of 3,4 – mthylenedioxymethamphetamine (MDMA)
- MDMA Neurotoxicity Study
Other Mescaline Research
Other Multi-Drug Studies
- Differential Effects of Hallucinogens, Entactogens, and Psychostimulants
- Receptor Mechanisms contributing to Psychedelic Drug Effects
- Set and Setting Study: Psychedelics and Flow States
Other Peyote Research
Other Psilocybin Research
- Effects of Psilocybin-Facilitated Experience on the Psychology and Effectiveness of Professional Leaders in Religion
- New York University Psilocybin and Cancer Study
- A Pilot Study of Psilocybin-Facilitated Smoking Cessation Treatment
- A Study of Psilocybin for Major Depressive Disorder (MDD)
- Spanish Psychedelic Survey
- Unlimited Sciences Online Study of Naturalistic Psilocybin Use
- Antidepressants and Psychedelics Survey
- Psilocybin Effects on Attention, Perception and Cognition
- A Double-Blind Trial of Psilocybin-Assisted Treatment of Alcohol Dependence (Recruitment Complete)
- NYU School of Medicine Researchers Seek Religious Leaders For Study (Recruitment Complete)
- Effects of Psilocybin in Major Depressive Disorder
- Johns Hopkins Study of Psilocybin in Cancer Patients
- Experimental Studies on the Effects of Psilocybin on Binocular Depth Inversion, Binocular Rivalry
- Human Psychopharmacology of Psilocybin
- Persisting Effects of Psilocybin on Emotional Brain Functioning in Healthy Volunteers
- Psilocybin’s Effects on Cognition
- Johns Hopkins University: Psilocybin produces substantial and sustained decreases in depression and anxiety in patients with life-threatening cancer: A randomized double-blind trial
- Using BOLD fMRI to measure the effects of psilocin on brain activity and connectivity
- The Good Friday Experiment Follow-Up
- The Concord Prison Experiment Follow-Up
- Psilocybin: Basic Dose-Response Safety Studies
- Psilocybin in the Treatment of Obsessive-Compulsive Disorder
- Psilocybin in the treatment of cancer patients
- Human Psychopharmacology of Psilocybin
- Psilocybin In The Treatment Of Cancer Patients