Psychological flexibility mediates the relations between acute psychedelic effects and subjective decreases in depression and anxiety.
Alan K. Davis, Frederick S. Barrett, Roland R. Griffiths
Journal of Contextual Behavioral Science 2020 DOI: 10.1016/j.jcbs.2019.11.004 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Cross-sectional survey Peer reviewed |
|---|---|
| Sample size | 985 |
| Population | International sample of people who reported having used a psychedelic |
| Topics | Anxiety Depression Psychedelic-assisted therapy |
| Keywords | Hallucinogens Mechanism Psychedelics Psychological flexibility Mental health outcomes |
| Citations | 369 |
| Key findings | Increases in psychological flexibility fully mediated the effect of mystical and insightful experiences on decreases in depression and anxiety following a psychedelic experience. |
Abstract
Prior research has shown that acute subjective psychedelic effects are associated with both spontaneous and intended changes in depression and anxiety. Psychedelics are also theorized to produce increases in psychological flexibility, which could explain decreases in depression and anxiety following a psychedelic experience. Therefore, the present cross-sectional survey study sought to examine whether psychological flexibility mediated the relationship between acute psychedelic experiences and spontaneous or intended changes in depression and anxiety among a large international sample of people who reported having used a psychedelic (n=985; male=71.6%; Caucasian/white=84.1%; M age=32.2, SD=12.6). A regression analysis showed that acute effects (i.e., mystical and insightful effects) were significantly associated with decreases in depression/anxiety following a psychedelic experience. A path analysis revealed that, while controlling for age and sex, increases in psychological flexibility fully mediated the effect of mystical and insightful experiences on decreases in depression and anxiety following a psychedelic experience. This suggests that psychological flexibility may be an important mediator of the therapeutic effects of psychedelic drugs. Future prospective experimental studies should examine the effect of psychedelic drug administration on psychological flexibility in order to gain a better understanding of the psychological processes that predict therapeutic effects of psychedelics.
In the evidence
This study is part of the evidence base for a synthesis in the library. Here is how each one recorded it.
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Acute mystical and insightful effects were associated with decreases in depression and anxiety, fully mediated by increases in psychological flexibility.
Synthesized
Comparable studies
Other cross-sectional and survey studies on anxiety, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| The Challenging Experience Questionnaire: Characterization of challenging experiences with psilocybin mushrooms Internet survey respondents reporting challenging experiences with psilocybin | 2016 | Questionnaire development and validation | |
| Psychedelics and Mental Health: A Population Study Adult population in the United States | 2013 | Cross-sectional survey | n = 130,152 |
| Ecstasy/MDMA attributed problems reported by novice, moderate and heavy recreational users Ecstasy users who participated in a WWW study of recreational drug use | 2002 | Cross-sectional survey | n = 282 |
| 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) used in a naturalistic group setting is associated with unintended improvements in depression and anxiety. Adults who used 5-MeO-DMT in a group setting with structured procedures | 2019 | Cross-sectional survey | n = 362 |
| Microdosing psychedelics: Motivations, subjective effects and harm reduction People aged 16 years or older who had used psychedelics and could comprehend written... | 2019 | Cross-sectional survey | n = 525 |
Citations in the library
Cited by 288
- Effects of Psilocybin-Assisted Therapy on Major Depressive Disorder JAMA Psychiatry November 4, 2020
- Percentage of Heavy Drinking Days Following Psilocybin-Assisted Psychotherapy vs Placebo in the Treatment of Adult Patients With Alcohol Use Disorder JAMA Psychiatry August 24, 2022
- The Subjective Effects of Psychedelics Are Necessary for Their Enduring Therapeutic Effects. ACS Pharmacology & Translational Science December 10, 2020
- Efficacy and safety of psilocybin-assisted treatment for major depressive disorder: Prospective 12-month follow-up Journal of Psychopharmacology February 1, 2022
- Psilocybin therapy increases cognitive and neural flexibility in patients with major depressive disorder. Translational Psychiatry November 8, 2021
and 283 more in the library
Cites 32
- Psilocybin produces substantial and sustained decreases in depression and anxiety in patients with life-threatening cancer: A randomized double-blind trial Journal of Psychopharmacology November 30, 2016
- Rapid and sustained symptom reduction following psilocybin treatment for anxiety and depression in patients with life-threatening cancer: a randomized controlled trial Journal of Psychopharmacology November 30, 2016
- Psilocybin with psychological support for treatment-resistant depression: an open-label feasibility study. The Lancet Psychiatry May 17, 2016
- The entropic brain: a theory of conscious states informed by neuroimaging research with psychedelic drugs Frontiers in Human Neuroscience 2014
- Psilocybin occasioned mystical-type experiences: immediate and persisting dose-related effects. Psychopharmacology December 1, 2011
and 27 more in the library