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Open access

Research article

First published 2026

Field Notes From Inner Space: Global Psychedelic Survey Participants Report Health Benefits,Personal Growth,and Life Transformations

Jill Robinson, Noah Wallace, Esenia Cassidy [...]

Contemporary Drug Problems

Retricted access

Research article

First published 2025-5

Co-use of psychedelics with other substances: Findings from the global psychedelic survey

Stephanie Lake, Philippe Lucas

Journal of Psychopharmacology

Open access

Research article

First published 2020

Improved colour blindness symptoms associated with recreational psychedelic use: Results from the Global Drug Survey 2017

JEC Anthony, A Winstock, JA Ferris [...]

Drug Science,Policy and Law

Open access

Research article

First published 2022-1

Validation of the Psychological Insight Scale: A new scale to assess psychological insight following a psychedelic experience

Joseph M Peill, Katie E Trinci, Hannes Kettner [...]

Journal of Psychopharmacology

Open access

Research article

First published 2025

Exploring self-reported health behavior change following naturalistic psychedelic use

Laura C. Carvalho, Jorge Encantado, Arlen C. Moller [...]

Journal of Health Psychology

Open access

Research article

First published 2024-8

From chaos to kaleidoscope: Exploring factors in psychedelic self-treatment for mental health conditions

Claire Walker, Timothy Piatkowski, Jason Ferris [...]

Journal of Psychopharmacology

Retricted access

Research article

First published 2025-5

Pictorial representation of illness and self measure (PRISM): A putative transdiagnostic tool for evaluating therapeutic effects of psychedelic treatments

Niloufar Pouyan, Jacob S Aday, Steven E Harte [...]

Journal of Psychopharmacology

Open access

Research article

First published 2023-7

Investigation of self-treatment with lysergic acid diethylamide and psilocybin mushrooms: Findings from the Global Drug Survey 2020

Emma I Kopra, Jason A Ferris, Adam R Winstock [...]

Journal of Psychopharmacology

Open access

Research article

First published 2025

Self-treatment of psychiatric conditions using ketamine: Patterns,characteristics,and retrospective insights

Gabrielle Smith, Timothy Piatkowski, Jason Ferris [...]

Journal of Psychopharmacology

Retricted access

Research article

First published 2014-1

Dimethyltryptamine (DMT): Prevalence,user characteristics and abuse liability in a large global sample

Adam R Winstock, Stephen Kaar, Rohan Borschmann

Journal of Psychopharmacology

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