Evidence map›Paper›PMID 42068187›Full record

Trial reportJournal of psychopharmacology (Oxford, England)2026

Effects of psychedelic use on authoritarian attitudes revisited.

Otto Simonsson, Taylor Lyons, Joseph Marks, Hannes Kettner, Leor Roseman, Eline Haijen, Mendel Kaelen, Robin Carhart-Harris

Abstract readRandomized Controlled TrialObservational Study
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Journal of psychopharmacology (Oxford, England), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Otto SimonssonCenter for Social Sustainability, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0003-4197-7566
Taylor LyonsCentre for Psychedelic Research, Imperial College London, UK.
Joseph MarksDepartment of Experimental Psychology, University College London, UK.
Hannes KettnerCentre for Psychedelic Research, Imperial College London, UK.ORCID 0000-0001-9482-0998
Leor RosemanDepartment of Psychology, University of Exeter, UK.ORCID 0000-0001-9990-6029
Eline HaijenDepartment of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, the Netherlands.ORCID 0000-0002-1110-1486
Mendel KaelenCentre for Psychedelic Research, Imperial College London, UK.
Robin Carhart-HarrisCentre for Psychedelic Research, Imperial College London, UK.ORCID 0000-0002-6062-7150

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious research suggests that psychedelics may, under certain conditions, decrease authoritarian attitudes, but larger and more rigorously designed studies are needed to confirm these findings.

aimsWe aimed to examine the effects of psychedelic use on authoritarian attitudes.

methodsUsing data from three separate studies with different designs and populations, we investigated the relationship between psychedelic use and authoritarian attitudes. Study 1 was a naturalistic observational study with participants who planned to use psychedelics at their own initiative, Study 2 was a single-arm study with healthy volunteers who received psilocybin, and Study 3 was a randomized, controlled trial with patients diagnosed with depression who received psilocybin or escitalopram.

resultsAcross the three studies, results showed no significant changes in authoritarian attitudes after psychedelic use.

conclusionsContrary to previous research, the latest evidence is not compelling that psychedelic use influences authoritarian attitudes in a reliable direction. Future research should recruit larger and more diverse samples, collect additional context-related data, and also investigate political outcomes other than authoritarian attitudes.

Indexed as

AttitudeAuthoritarianismDepressionHallucinogensPsilocybinAdultCitalopramFemaleHumansMaleMiddle AgedYoung AdultCitalopramHallucinogensPsilocybinauthoritarianLSDpoliticalpsilocybinpsychedelics

Identifiers

PMID42068187
PMCPMC13310294

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.