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Ryan Andrew Shallcross

2 papers in the library · 7 citations · publishing 2025-2026

Papers

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Prevalence, types, and demographic characteristics associated with major life changes following psychedelic use

Scientific Reports January 28, 2026 Nicholas A. Carlisle, Otto Simonsson, Sarah Maccarthy et al.

Psychedelic use has been linked to major life changes that may impact health outcomes, yet few studies have systematically examined the prevalence, types, and demographic characteristics that may be associated with such changes. This paper draws subsamples of respondents who endorsed lifetime psychedelic use from two samples of US adults - one nationally representative by age, race/ethnicity,...

Naturalistic Psychedelic Use and Psychotic Symptoms: A Cross-Sectional Study of Individuals with a Personal or Family History of Psychotic or Bipolar Disorders.

Psychedelic medicine (New Rochelle, N.Y.) June 1, 2025 Haley Maria Dourron, Melissa Bradley, Otto Simonsson et al. 7 citations

Prior research examining the associations between psychedelic use and general psychotic symptoms has yielded mixed findings. However, no studies have investigated the relationships between psychedelic use and specific psychotic symptoms, and whether these relationships might differ among those with liability to psychosis, namely those with a history of psychotic or bipolar disorders. Using...