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Jan Schepers

4 papers in the library · 36 citations · publishing 2018-2026

Papers

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Trajectories of psychedelic-assisted change: An observational study of a psilocybin retreat program followed by psychotherapeutic interventions

Journal of Psychedelic Studies July 3, 2026 Henry J. Whitfield, Jan Schepers, Natasha L. Mason et al.

Abstract Despite growing interest in psychedelic-assisted psychotherapy, research investigating the psychotherapeutic components is lacking. This leaves unanswered questions regarding the psychotherapy's necessity and form. This observational study addresses this gap by measuring the outcomes of a psilocybin truffle retreat, followed by the outcomes of two psychotherapy interventions that...

DOI: 10.1556/2054.2026.00530 (opens in new tab) Full text (opens in new tab) Psilocybin Psychological intervention Observational study Intervention counseling +10

A randomised placebo-controlled study of the effects of lysergic acid diethylamide microdosing (15 μg) on pain perception in healthy volunteers.

British Journal of Pain September 4, 2025 Mauro Cavarra, Nadia R. P. W. Hutten, Jan Schepers et al.

Background: Preliminary research indicates that psychedelics may hold promise as analgesic agents. This study investigated the potential analgesic effects of lysergic acid diethylamide (LSD) microdosing on pain tolerance and subjective pain perception in healthy participants. Methods: Utilizing a randomised, placebo-controlled design, participants received 15 μg of LSD or placebo over four...

Cannabis containing equivalent concentrations of delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) induces less state anxiety than THC-dominant cannabis

Psychopharmacology October 13, 2022 Nadia R. P. W. Hutten, Thomas R. Arkell, Frederick Vinckenbosch et al. 36 citations

RATIONALE: Delta-9-tetrahydrocannabinol (THC), an active component of cannabis, can cause anxiety in some users during intoxication. Cannabidiol (CBD), another constituent of cannabis, has anxiolytic properties suggesting that cannabis products containing CBD in addition to THC may produce less anxiety than THC-only products. Findings to date around this issue have been inconclusive and could...

The effect of Mindfulness-Based Stress Reduction on wound healing: a preliminary study.

Journal of Behavioral Medicine June 2018 Astrid Meesters, Yvo M C In Den Bosch-Meevissen, Chantal A H Weijzen et al.

Psychological factors have been shown to influence the process of wound healing. This study examined the effect of Mindfulness-Based Stress Reduction (MBSR) on the speed of wound healing. The local production of pro-inflammatory cytokines and growth factors was studied as potential underlying mechanism. Forty-nine adults were randomly allocated to a waiting-list control group (n = 26) or an...