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  • Simonsson, Otto (author)

Longitudinal associations between psychedelic use and unusual visual experiences in the United States and the United Kingdom

  • Article/chapterEnglish2024

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  • 2024
  • printrdacarrier

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  • LIBRIS-ID:oai:DiVA.org:su-225127
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-225127URI
  • https://doi.org/10.1177/02698811231218931DOI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • OS was supported by Ekhaga Foundation and Olle Engkvist Foundation. SG was supported by a grant (K23AT010879) from the National Center for Complementary and Integrative Health. Support for this research was also provided by the University of Alabama at Birmingham School of Public Health, Swedish Research Council for Sustainable Development (FORMAS; FR-2018-0006; FR-2018-00246), Forte (2020-00977), and the University of Wisconsin—Madison Office of the Vice Chancellor for Research and Graduate Education with funding from the Wisconsin Alumni Research Foundation and with funding from the Wisconsin Center for Education Research.
  • Background: Whereas findings from case reports and cross-sectional studies suggest that naturalistic psychedelic use may be associated with unusual visual experiences that occur after the acute pharmacological effects have subsided, such findings need to be replicated in longitudinal studies to better understand potential cause-and-effect relationships.Aims: To investigate longitudinal associations between naturalistic psychedelic use and unusual visual experiences.Methods: Using a longitudinal observational research design with samples representative of the US and UK adult populations with regard to sex, age, and ethnicity (N = 9732), we investigated the relationship between psychedelic use during the 2-month study period and changes in past-week unusual visual experiences.Results: The follow-up survey was completed by 79% of respondents (n = 7667), with 100 respondents reporting psychedelic use during the 2-month study period (1.3% of those who responded at follow-up). In covariate-adjusted regression models, the results showed that, as hypothesized, psychedelic use during the 2-month study period was associated with greater increases in unusual visual experiences. Notably, there was an interaction between lifetime psychedelic use and psychedelic use during the study period on unusual visual experiences such that those who used psychedelics for the first time reported greater increases in unusual visual experiences.Conclusions: Psychedelic use may elicit unusual visual experiences that occur after the acute pharmacological effects have subsided, especially among those who have not used psychedelics previously. Future longitudinal studies are warranted to further elucidate these relationships.

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  • Hendricks, Peter S (author)
  • Stenfors, Cecilia U. D.,1982-Stockholms universitet,Biologisk psykologi(Swepub:su)csten (author)
  • Goldberg, Simon B (author)
  • Honk, Ludwig (author)
  • Osika, Walter (author)
  • Stockholms universitetBiologisk psykologi (creator_code:org_t)

Related titles

  • In:Journal of Psychopharmacology38:1, s. 110-1150269-88111461-7285

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