Journal of Psychoactive Drugs
April 25, 2025
Bruno Romeo, Ewen Kervadec, Baptiste Fauvel et al.
Neurobiological effects and psychological models propose that psychedelics may promote psychological flexibility, suggesting a transdiagnostic effect by disrupting maladaptive patterns. The objective of this study was therefore to investigate the determinants of psychological flexibility change following a psychedelic use. This retrospective online survey included French individuals who had...
Progress in neuro-psychopharmacology & biological psychiatry
March 20, 2025
Bruno Romeo, Ewen Kervadec, Baptiste Fauvel et al.
5 citations
The intensity of the psychedelic experience has been hypothesized as the main predictor of response to a psychedelic treatment. This study aimed to investigate factors that may be associated with the intensity of mystical experiences during naturalistic psychedelic use. The data of this comprehensive sample were aggregated from four previous retrospective surveys, where mystical experience...
Histoire, Médecine et Santé
December 9, 2024
Vincent Verroust
This article analyzes an excerpt from the documentary Les champignons hallucinogènes du Mexique (Hallucinogenic Mushrooms of Mexico), directed in 1964 by Pierre Thévenard under the scientific guidance of Professor Roger Heim, a mycologist and then-director of the National Museum of Natural History. This rarely broadcast film explores the archaeological, historical, ethnographic, biological,...
Journal of Psychoactive Drugs
July 3, 2024
Bruno Romeo, Ewen Kervadec, Baptiste Fauvel et al.
5 citations
Treating cannabis use disorder remains a significant challenge in the field of addiction medicine. Some recent studies point to psychedelic-assisted psychotherapy as a potential treatment option for substance use disorders. The objective of this study was therefore to explore the impact of naturalistic psychedelic experiences on cannabis use and psychological flexibility. An online...
Psychiatry Research
May 1, 2024
Bruno Romeo, Ewen Kervadec, Baptiste Fauvel et al.
48 citations
Psychotherapies assisted by psychedelic substances have shown promising results in the treatment of psychiatric disorders. The aim of this systematic review and meta-analysis was to evaluate safety data in human subjects. We carried out a search on MEDLINE, Embase and PsycINFO databases between 2000 and 2022. Standardized mean differences between different dose ranges and between acute and...
Alcohol and alcoholism (Oxford, Oxfordshire)
January 17, 2024
Ewen Kervadec, Baptiste Fauvel, Lana Strika-Bruneau et al.
15 citations
Alcohol use can be significantly associated with negative social, professional, and health outcomes. Even more so, alcohol use disorder (AUD) is a critical public health issue and major avoidable risk factor. This study aimed to examine the effect of a naturalistic psychedelic experience on alcohol use and related measures. A retrospective online survey was conducted on 160 individuals who...
HAL (Le Centre pour la Communication Scientifique Directe)
December 1, 2023
Zoë Dubus, Elise Grandgeorge, Vincent Verroust
International audience
Frontiers in Psychology
September 1, 2023
Zoë Dubus, Elise Grandgeorge, Vincent Verroust
3 citations
This article reviews the historical protocols for the administration of “classic” psychedelics in France, from the 1920s to the 1960s. Taking a chronological approach, it investigates the way mescaline, LSD, and psilocybin were administered, the subjects involved, the route of administration, the dosage, and the epistemological context of the research. From the 1930s, the Sainte-Anne school...
Sci Rep
August 17, 2023
Anne Buot, Cecile Pallares, Alina Oganesyan et al.
28 citations
A renewed interest in the use of psychedelics for treating obsessive compulsive disorder (OCD) has emerged in the last 20 years. But pre-clinical and clinical evidence remain scarce, and little is known about the factor determining the magnitude and persistence of the therapeutic effect. We therefore designed a retrospective online survey to explore, in the general population using psychoactive...
Journal of Psychoactive Drugs
2023
Bruno Romeo, Baptiste Fauvel, S Dejean et al.
14 citations
Tobacco use disorder is a major public health concern. The aim of this study was to investigate the impact of a psychedelic experience in a natural context on tobacco use. A retrospective online survey was conducted on 173 individuals who reported having had a psychedelic experience while being smokers. Demographic information was collected, and characteristics of the psychedelic experience,...
European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology
November 1, 2022
Marco Solmi, Chaomei Chen, Charles Dauré et al.
55 citations
A scientometric analysis was realized to outline clinical research on psychedelics over the last century. Web of Science Core Collection was searched up to March 18, 2022, for publications on psychedelics. Network analyses and bibliometrics were combined, to identify research themes and trends with Bibliometrix and CiteSpace. The primary aim was to measure research trends evolution over time,...