Int J Drug Policy
December 13, 2025
Michelle Olofsson, Walter Osika, Simon B. Goldberg et al.
2 citations
BACKGROUND: Naturalistic psychedelic use can result in a range of difficulties that impair social, occupational, and other important areas of functioning. Yet, the prevalence, phenomenology, and etiology of these outcomes remain poorly understood. Recent qualitative research has shown that individuals with long-term difficulties after psychedelic use sometimes attribute their challenges to...
Psychol Med
March 31, 2025
Otto Simonsson, Simon B. Goldberg, Walter Osika et al.
16 citations
BACKGROUND: Findings from contemporary clinical trials suggest that psychedelics are generally safe and may be effective in the treatment of various psychiatric disorders. However, less is known about the risks associated with psychedelic use outside of medically supervised contexts, particularly in populations that are typically excluded from participation in clinical trials. METHODS:...
J Psychiatr Res
March 17, 2025
Otto Simonsson, Sankalp Chaturvedi, Peter S. Hendricks et al.
2 citations
Previous research has investigated associations between psychedelic experiences and meditation practice, but knowledge gaps remain. Using a longitudinal research design with a sample of US residents between 18 and 50 years old (N = 13,012), we investigated associations between psychedelic-related and meditation-related variables. The follow-up survey was completed by 7484 respondents, of whom...
Psychological Medicine
April 1, 2024
Otto Simonsson, Walter Osika, Cecilia U.D. Stenfors et al.
15 citations
Previous research has proposed that there may be potential synergies between psychedelic and meditation interventions, but there are still knowledge gaps that merit further investigation. Using a longitudinal observational research design with samples representative of the US and UK adult population with regard to sex, age, and ethnicity (N = 9732), we investigated potential associations...
Journal of Affective Disorders
January 26, 2024
Ludwig Honk, Cecilia U.D. Stenfors, Simon B. Goldberg et al.
41 citations
It has long been speculated that psychedelic use could provoke the onset of psychosis, but there is little evidence to support this conjecture. Using a longitudinal research design with samples representative of the US and UK adult populations with regard to sex, age, and ethnicity (n = 9732), we investigated associations between psychedelic use and change in the number of psychotic symptoms...
Frontiers in Psychology
2023
Otto Simonsson, Cecilia U.D. Stenfors, Simon B. Goldberg et al.
4 citations
Previous research suggests that mindfulness meditation and psychedelic substances show promise as mental health interventions, but relatively little remains known about their potential impact on leadership outcomes. This study aimed to investigate if and how mindfulness meditation and psychedelic use may impact leadership among respondents with a management position as their primary role at...
International Journal of Environmental Research and Public Health
July 1, 2022
Elin Pöllänen, Walter Osika, Otto Simonsson et al.
12 citations
Previous research has found associations between classic psychedelic use and nature-relatedness, but the link between classic psychedelic use and human–animal relations remains largely unexplored. Using data representative of the US adult population, with regard to age, sex and ethnicity (N = 2822), this pre-registered study assessed lifetime classic psychedelic use, ego dissolution during...