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Published on in Vol 23, No 7 (2021): July

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/25973, first published .
Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use

Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use

Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use

Journals

  1. Kiraga M, Kuypers K, Uthaug M, Ramaekers J, Mason N. Decreases in State and Trait Anxiety Post-psilocybin: A Naturalistic, Observational Study Among Retreat Attendees. Frontiers in Psychiatry 2022;13 View
  2. Peill J, Trinci K, Kettner H, Mertens L, Roseman L, Timmermann C, Rosas F, Lyons T, Carhart-Harris R. Validation of the Psychological Insight Scale: A new scale to assess psychological insight following a psychedelic experience. Journal of Psychopharmacology 2022;36(1):31 View
  3. Molumby M, Gaynor K, Guerin S, McNamara R. Examining Attitudes to Psilocybin: Should Candidates for Medical Psilocybin be Required to Pass a Contextual Suitability Test?. Journal of Humanistic Psychology 2022 View
  4. Sturgis P, Brunton-Smith I. Personality and Survey Satisficing. Public Opinion Quarterly 2023;87(3):689 View
  5. Bremler R, Katati N, Shergill P, Erritzoe D, Carhart-Harris R. Case analysis of long-term negative psychological responses to psychedelics. Scientific Reports 2023;13(1) View
  6. Kettner H, Roseman L, Gazzaley A, Carhart-Harris R, Pasquini L. Effects of Psychedelics in Older Adults: A Prospective Cohort Study. The American Journal of Geriatric Psychiatry 2024;32(9):1047 View
  7. Izmi N, Carhart-Harris R, Kettner H. Psychological effects of psychedelics in adolescents. Frontiers in Child and Adolescent Psychiatry 2024;3 View
  8. Song N, Chen K, Peng J, Zhao Y, Wang J. Misleading and correcting: characteristics of online misinformation and refutations in China during the COVID-19 pandemic. Aslib Journal of Information Management 2026;78(1):214 View
  9. Zhou K, de Wied D, Carhart-Harris R, Kettner H, Fleming S. Prediction of hallucinogen persisting perception disorder and thought disturbance symptoms following psychedelic use. PNAS Nexus 2025;4(4) View
  10. Roseby W, Kettner H, Roseman L, Spriggs M, Lyons T, Peill J, Giribaldi B, Erritzoe D, Nutt D, Carhart-Harris R. Enhanced meaning in life following psychedelic use: converging evidence from controlled and naturalistic studies. Frontiers in Psychology 2025;16 View
  11. Herrmann F, Jones G, Low D, Zech J, Carhart-Harris R, Kettner H. Exploring the potential psychological predictors associated with changes in depression, anxiety, and well-being following naturalistic psychedelic use. Journal of Psychiatric Research 2025;191:15 View
  12. Braun L, Allen H, Keller J. Risk Factors for Community-Dwelling Older Adults Dropping Out of Self-Guided, Remote, and Web-Based Longitudinal Research: Predictive Modeling of Data from the Web-LABrainS Platform. JMIR Aging 2025;8:e68826 View
  13. Mehmood M, Bremler R, Spriggs M, Kettner H, Roseman L, Damgaard L, Carhart-Harris R, Erritzoe D, Zeifman R. Ceremonial Psychedelic Experiences and Changes in Mental Health Outcomes in Those with Adverse Childhood Experiences. Psychedelic Medicine 2025 View
  14. Lipson J, Kettner H, Carhart-Harris R, Miller L. Baseline Mood and “Relational Triad” Predict Acute Qualities of Psychedelic Experience. Behavioral Sciences 2026;16(2):310 View