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Mystical-type experiences occasioned by psilocybin mediate the attribution of personal meaning and spiritual significance 14 months later
Open accessAbstract
Psilocybin has been used for centuries for religious purposes; however, little is known scientifically about its long-term effects. We previously reported the effects of a double-blind study evaluating the psychological effects of a high psilocybin dose. This report presents the 14-month follow-up and examines the relationship of the follow-up results to data obtained at screening and on drug session days. Participants were 36 hallucinogen-naïve adults reporting regular participation in religious/ spiritual activities. Oral psilocybin (30 mg/70 kg) was administered on one of two or three sessions, with methylphenidate (40 mg/70 kg) administered on the other session(s). During sessions, volunteers were encouraged to close their eyes and direct their attention inward. At the 14-month follow-up, 58% and 67%, respectively, of volunteers rated the psilocybin-occasioned experience as being among the five most personally meaningful and among the five most spiritually significant experiences of their lives; 64% indicated that the experience increased well-being or life satisfaction; 58% met criteria for having had a 'complete' mystical experience. Correlation and regression analyses indicated a central role of the mystical experience assessed on the session day in the high ratings of personal meaning and spiritual significance at follow-up. Of the measures of personality, affect, quality of life and spirituality assessed across the study, only a scale measuring mystical experience showed a difference from screening. When administered under supportive conditions, psilocybin occasioned experiences similar to spontaneously occurring mystical experiences that, at 14-month follow-up, were considered by volunteers to be among the most personally meaningful and spiritually significant of their lives.
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“Psilocybin (4-phosphryloxy-N,N-dimethyltryptamine) is a serotonergic classic psychedelic (19–25) that has been examined in combination with psychological support as a promising treatment option in clinical trials for various disorders (26–28).”
From Acute and post-dosing effects of single-dose psilocybin for obsessive-compulsive disorder in a randomized, double-blind, placebo-controlled trial: an interpretative phenomenological analysis (2025) · cites this paper as [21]
Experimental — accuracy not yet measuredThe source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“supporting evidence that psilocybin increases emotional empathy, attachment security and other prosocial effects, which has been observed previously [61,62].”
From Psilocybin‐assisted psychotherapy for methamphetamine use disorder: A pilot open‐label safety and feasibility study. (2025) · cites this paper as [62]
Experimental — accuracy not yet measuredThe source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“Psychedelic experiences in clinical settings are often characterized as highly meaningful.”
From Authenticity and Love Drugs: Insights from Psychedelic Therapy (2026) · cites this paper as Griffiths et al. 2008
Experimental — accuracy not yet measuredThe source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
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“psilocybin treatment has been described as one of the most meaningful experiences (Griffiths et al. 2008;Smith and Sisti 2020) in the lives of participants of several studies.”
From Authenticity and Love Drugs: Insights from Psychedelic Therapy (2026) · cites this paper as Griffiths et al. 2008
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In the citing paper
“in our trial, participants rarely described the full array of acute effects that together prototypically constitute ‘full mystical experiences’ described in landmark studies (e.g., psilocybin for existential distress or depression) (21, 63).”
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“Mindfulness meditation and mindfulness-based interventions can augment positive affect in healthy and clinical populations acutely and long-term (10, 88) and a similar mood-enhancing potential has been demonstrated for psychedelics such as psilocybin (29, 38, 60, 83, 87).”
From Examining the Potential Synergistic Effects Between Mindfulness Training and Psychedelic-Assisted Therapy (2021) · cites this paper as [83]
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“Importantly, previous studies utilising psychedelic-administration outside of a mindfulness-enhancing context have failed to show such positive trait changes (83, 87, 133), with the exception of trait openness (74, 134).”
From Examining the Potential Synergistic Effects Between Mindfulness Training and Psychedelic-Assisted Therapy (2021) · cites this paper as [83]
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“Controlled studies where subjects achieved mystical experiences under the effects of psilocybin showed personal long-term benefits (Griffiths et al., 2008; Griffiths et al., 2011).”
From Psychological variables implied in the therapeutic effect of ayahuasca: A contextual approach (2018) · cites this paper as Griffiths et al., 2008
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“we suggest this is not the case where the meaning derived can continue to influence and help the person beyond the use of the drug, as studies have indicated (Griffiths et al. 2008;Lebedev et al. 2016).”
From Authenticity and Love Drugs: Insights from Psychedelic Therapy (2026) · cites this paper as Griffiths et al. 2008
In the citing paper
“Self-reported increases in interpersonal closeness and positive/altruistic social effects were reported 1, 2, 6, and 14 months after one and two administrations of psilocybin (89–92).”
From Modulation of Social Cognition via Hallucinogens and “Entactogens” (2019) · cites this paper as [90]
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Citations
Cites
The varieties of religious experience: A study in human nature.
James, W. (1902) · doi:10.1037/10004-000 · Cited by 5,204
The PANAS-X: Manual for the Positive and Negative Affect Schedule - Expanded Form
Watson, D., & Clark, L. A. (1994) · doi:10.17077/48vt-m4t2 · Cited by 3,790
Psychological Assessment Resources
Abidin, R. R. (1995) · Medical Entomology and Zoology · Cited by 3,141
Peterman, A. H., Fitchett, G., Brady, M. J., Hernandez, L., & Cella, D. (2002) · Annals of Behavioral Medicine · doi:10.1207/s15324796abm2401_06 · Cited by 1,751
Griffiths, R. R., Richards, W. A., McCann, U., & Jesse, R. (2006) · Psychopharmacology · doi:10.1007/s00213-006-0457-5 · Cited by 1,684 · cited 9×
“The purpose of having the possibility of a third session was to help control for expectancy effects (Griffiths et al., 2006).”
InfluentialSelf-citationThe Revised NEO Personality Inventory (NEO-PI-R)
Costa, P. T., & McCrae, R. R. (2008) · SAGE Publications Ltd eBooks · doi:10.4135/9781849200479.n9 · Cited by 1,569
The Psychology of Religion: An Empirical Approach
Donahue, M. J., Hood, R. W., Spilka, B., Hunsberger, B. E., & Gorsuch, R. L. (1998) · Journal for the Scientific Study of Religion · doi:10.2307/1388044 · Cited by 1,339
Piedmont, R. L. (1999) · Journal of Personality · doi:10.1111/1467-6494.00080 · Cited by 1,249
Nichols, D. E. (2004) · Pharmacology & Therapeutics · doi:10.1016/j.pharmthera.2003.11.002 · Cited by 1,211
Human hallucinogen research: guidelines for safety
Johnson, M., Richards, W., & Griffiths, R. (2008) · Journal of Psychopharmacology · doi:10.1177/0269881108093587 · Cited by 1,203
Self-citation
Research works printed but not linked: 10
- Doblin, R., 1991, J Transpersonal Psychol, 23, 1
- Frisch, MB, 1994, QOLI, Quality of Life Inventory: Manual and Treatment Guide for the Quality of Life Inventory
- Hollister, LE, 1961, Arch Int Pharmacodyn Ther, 130, 42
- Hood Jr, RW, 2000, J Psychology Christ, 19, 232
- Johnson, MW, Journal of Psychopharmacology, 22
- Metzner, R., 2004, Teonanacatl: Sacred Mushroom of Visions. El Verano
- Metzner, R., 1965, Psychedelic Rev, 5, 3
- Pahnke, WN, PhD Thesis presented to the President and Fellows of Harvard University in Religion and Society
- Pahnke, WN (1967) LSD and religious experience. In: DeBold, RC , Leaf, RC (eds), LSD Man & Society. Middletown, CT: Wesleyan University Press, pp. 60-85.
- Pahnke, WN, 1969, Int Psychiatry Clin, 5, 149
Cited by
Sorted by citations
Griffiths, R. R., Johnson, M. W., Carducci, M. A., Umbricht, A., Richards, W. A., Richards, B. D., Cosimano, M. P., & Klinedinst, M. A. (2016) · Journal of Psychopharmacology · doi:10.1177/0269881116675513 · Cited by 2,201
“Also relevant, a recent open-label pilot study in 12 patients with treatment-resistant depression showed marked reductions in depressive symptoms 1 week and 3 months after administration of 10 and 25 mg of psilocybin in two sessions separated by 7 days (Carhart-Harris et al., 2016).”
BackgroundResultSelf-citationNichols, D. E. (2016) · Pharmacological Reviews · doi:10.1124/pr.115.011478 · Cited by 1,762
Ross, S., Bossis, A., Guss, J., Agin-Liebes, G., Malone, T., Cohen, B., Mennenga, S. E., Belser, A., Kalliontzi, K., Babb, J., et al. (2016) · Journal of Psychopharmacology · doi:10.1177/0269881116675512 · Cited by 1,698
Carhart-Harris, R. L., Bolstridge, M., Rucker, J., Day, C. M. J., Erritzoe, D., Kaelen, M., Bloomfield, M., Rickard, J. A., Forbes, B., Feilding, A., et al. (2016) · The Lancet Psychiatry · doi:10.1016/s2215-0366(16)30065-7 · Cited by 1,540
Carhart-Harris, R. L., Leech, R., Hellyer, P. J., Shanahan, M., Feilding, A., Tagliazucchi, E., Chialvo, D. R., & Nutt, D. (2014) · Frontiers in Human Neuroscience · doi:10.3389/fnhum.2014.00020 · Cited by 1,252
Psychedelics promote structural and functional neural plasticity
Ly, C., Greb, A. C., Cameron, L. P., Wong, J. M., Barragan, E. V., Wilson, P. C., Burbach, K. F., Soltanzadeh Zarandi, S., Sood, A., Paddy, M. R., et al. (2018) · Cell Reports · doi:10.1016/j.celrep.2018.05.022 · Cited by 1,207
Psilocybin-assisted treatment for alcohol dependence: A proof-of-concept study
Bogenschutz, M. P., Forcehimes, A. A., Pommy, J. A., Wilcox, C. E., Barbosa, P., & Strassman, R. J. (2015) · Journal of Psychopharmacology · doi:10.1177/0269881114565144 · Cited by 1,151
Neural correlates of the psychedelic state as determined by fMRI studies with psilocybin
Carhart-Harris, R. L., Erritzoe, D., Williams, T., Stone, J. M., Reed, L. J., Colasanti, A., Tyacke, R. J., Leech, R., Malizia, A. L., Murphy, K., et al. (2012) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1119598109 · Cited by 1,172
Psilocybin with psychological support for treatment-resistant depression: six-month follow-up
Carhart-Harris, R. L., Bolstridge, M., Day, C. M. J., Rucker, J., Watts, R., Erritzoe, D. E., Kaelen, M., Giribaldi, B., Bloomfield, M., Pilling, S., et al. (2018) · Psychopharmacology · doi:10.1007/s00213-017-4771-x · Cited by 970
Psilocybin occasioned mystical-type experiences: immediate and persisting dose-related effects
Griffiths, R. R., Johnson, M. W., Richards, W. A., Richards, B. D., McCann, U., & Jesse, R. (2011) · Psychopharmacology · doi:10.1007/s00213-011-2358-5 · Cited by 932
Self-citationPilot study of the 5-HT 2A R agonist psilocybin in the treatment of tobacco addiction
Johnson, M. W., Garcia-Romeu, A., Cosimano, M. P., & Griffiths, R. R. (2014) · Journal of Psychopharmacology · doi:10.1177/0269881114548296 · Cited by 914
“Moreover, at 14-month follow-up, 61% of volunteers associated these experiences with moderate to extreme positive behavior change (Griffiths et al., 2008).”
BackgroundSelf-citationMacLean, K. A., Johnson, M. W., & Griffiths, R. R. (2011) · Journal of Psychopharmacology · doi:10.1177/0269881111420188 · Cited by 895
Self-citationThe neurobiology of psychedelic drugs: implications for the treatment of mood disorders
Vollenweider, F. X., & Kometer, M. (2010) · Nature Reviews Neuroscience · doi:10.1038/nrn2884 · Cited by 723
Serotonin and brain function: a tale of two receptors
Carhart-Harris, R., & Nutt, D. (2017) · Journal of Psychopharmacology · doi:10.1177/0269881117725915 · Cited by 739
The varieties of self-transcendent experience
Yaden, D. B., Haidt, J., Hood, R. W., Vago, D. R., & Newberg, A. B. (2017) · Review of General Psychology · doi:10.1037/gpr0000102 · Cited by 701
Long-term follow-up of psilocybin-facilitated smoking cessation
Johnson, M. W., Garcia-Romeu, A., & Griffiths, R. R. (2017) · The American Journal of Drug and Alcohol Abuse · doi:10.3109/00952990.2016.1170135 · Cited by 696
Self-citationValidation of the revised Mystical Experience Questionnaire in experimental sessions with psilocybin
Barrett, F. S., Johnson, M. W., & Griffiths, R. R. (2015) · Journal of Psychopharmacology · doi:10.1177/0269881115609019 · Cited by 637
Self-citationPsychedelic drugs: neurobiology and potential for treatment of psychiatric disorders
Vollenweider, F. X., & Preller, K. H. (2020) · Nature Reviews Neuroscience · doi:10.1038/s41583-020-0367-2 · Cited by 570
The subjective effects of psychedelics are necessary for their enduring therapeutic effects
Yaden, D. B., & Griffiths, R. R. (2021) · ACS Pharmacology & Translational Science · doi:10.1021/acsptsci.0c00194 · Cited by 541
Self-citationGriffiths, R. R., Johnson, M. W., Richards, W. A., Richards, B. D., Jesse, R., MacLean, K. A., Barrett, F. S., Cosimano, M. P., & Klinedinst, M. A. (2018) · Journal of Psychopharmacology · doi:10.1177/0269881117731279 · Cited by 520
Self-citationStuderus, E., Kometer, M., Hasler, F., & Vollenweider, F. X. (2011) · Journal of Psychopharmacology · doi:10.1177/0269881110382466 · Cited by 532
Johnson, M. W., Hendricks, P. S., Barrett, F. S., & Griffiths, R. R. (2019) · Pharmacology & Therapeutics · doi:10.1016/j.pharmthera.2018.11.010 · Cited by 506
Self-citationPsilocybin-Occasioned mystical experiences in the treatment of tobacco addiction.
Garcia-Romeu, A., Griffiths, R., & Johnson, M. (2015) · Current Drug Abuse Reviews · doi:10.2174/1874473708666150107121331 · Cited by 476
Self-citationEgo-dissolution and psychedelics: validation of the ego-dissolution inventory (EDI).
Nour, M. M., Evans, L., Nutt, D., & Carhart-Harris, R. L. (2016) · Frontiers in Human Neuroscience · doi:10.3389/fnhum.2016.00269 · Cited by 470
Gukasyan, N., Davis, A. K., Barrett, F. S., Cosimano, M. P., Sepeda, N. D., Johnson, M. W., & Griffiths, R. R. (2022) · Journal of Psychopharmacology · doi:10.1177/02698811211073759 · Cited by 425
Self-citationPredicting responses to psychedelics: a prospective study
Haijen, E. C. H. M., Kaelen, M., Roseman, L., Timmermann, C., Kettner, H., Russ, S., Nutt, D., Daws, R. E., Hampshire, A. D. G., Lorenz, R., et al. (2018) · Frontiers in Pharmacology · doi:10.3389/fphar.2018.00897 · Cited by 417
Davis, A. K., Barrett, F. S., & Griffiths, R. R. (2020) · Journal of Contextual Behavioral Science · doi:10.1016/j.jcbs.2019.11.004 · Cited by 375
Self-citationEmotions and brain function are altered up to one month after a single high dose of psilocybin.
Barrett, F. S., Doss, M. K., Sepeda, N. D., Pekar, J. J., & Griffiths, R. R. (2020) · Scientific Reports · doi:10.1038/s41598-020-59282-y · Cited by 375
Self-citationBarrett, F. S., Bradstreet, M. P., Leoutsakos, J.-M. S., Johnson, M. W., & Griffiths, R. R. (2016) · Journal of Psychopharmacology · doi:10.1177/0269881116678781 · Cited by 366
“…change (Carhart-Harris et al., 2016b; Lebedev et al., 2016; MacLean et al., 2011), positive mental health outcomes (Hendricks et al., 2015; Johansen and Krebs, 2015), and enduring positive changes in attitudes, mood and behavior (Griffiths et al., 2008, 2011) occasioned by these compounds.”
Self-citationAgin-Liebes, G. I., Malone, T., Yalch, M. M., Mennenga, S. E., Ponté, K. L., Guss, J., Bossis, A. P., Grigsby, J., Fischer, S., & Ross, S. (2020) · Journal of Psychopharmacology · doi:10.1177/0269881119897615 · Cited by 360
Johnson, M. W., Griffiths, R. R., Hendricks, P. S., & Henningfield, J. E. (2018) · Neuropharmacology · doi:10.1016/j.neuropharm.2018.05.012 · Cited by 354
Self-citationPsychedelics and mental health: a population study
Krebs, T. S., & Johansen, P.-Ø. (2013) · PLoS ONE · doi:10.1371/journal.pone.0063972 · Cited by 347
Andersen, K. A. A., Carhart‐Harris, R., Nutt, D. J., & Erritzoe, D. (2021) · Acta Psychiatrica Scandinavica · doi:10.1111/acps.13249 · Cited by 347
Psychiatry & the psychedelic drugs. Past, present & future
Rucker, J. J. H., Iliff, J., & Nutt, D. J. (2018) · Neuropharmacology · doi:10.1016/j.neuropharm.2017.12.040 · Cited by 343
Ayahuasca-Assisted Therapy for Addiction: Results from a Preliminary Observational Study in Canada
Thomas, G., Lucas, P., Capler, N., Tupper, K., & Martin, G. (2013) · Current Drug Abuse Reviews · doi:10.2174/15733998113099990003 · Cited by 330
Recent advances in the neuropsychopharmacology of serotonergic hallucinogens
Halberstadt, A. L. (2015) · Behavioural Brain Research · doi:10.1016/j.bbr.2014.07.016 · Cited by 312
“Psilocybin can induce highly meaningful spiritual experiences (Griffiths et al., 2006), and some subjects have reported experiencing positive changes in mood and behavior that persist for many months (Griffiths et al., 2008).”
BackgroundTowards an understanding of psychedelic-induced neuroplasticity
Calder, A. E., & Hasler, G. (2023) · Neuropsychopharmacology · doi:10.1038/s41386-022-01389-z · Cited by 313
Belser, A. B., Agin-Liebes, G., Swift, T. C., Terrana, S., Devenot, N., Friedman, H. L., Guss, J., Bossis, A., & Ross, S. (2017) · Journal of Humanistic Psychology · doi:10.1177/0022167817706884 · Cited by 311
dos Santos, R. G., Osório, F. L., Crippa, J. A. S., Riba, J., Zuardi, A. W., & Hallak, J. E. C. (2016) · Therapeutic Advances in Psychopharmacology · doi:10.1177/2045125316638008 · Cited by 306
The paradoxical psychological effects of lysergic acid diethylamide LSD
Carhart-Harris, R. L., Kaelen, M., Bolstridge, M., Williams, T. M., Williams, L. T., Underwood, R., Feilding, A., & Nutt, D. J. (2016) · Psychological Medicine · doi:10.1017/s0033291715002901 · Cited by 293
Psychedelic therapy for smoking cessation: qualitative analysis of participant accounts
Noorani, T., Garcia-Romeu, A., Swift, T. C., Griffiths, R. R., & Johnson, M. W. (2018) · Journal of Psychopharmacology · doi:10.1177/0269881118780612 · Cited by 285
Self-citationClassic Hallucinogens and Mystical Experiences: Phenomenology and Neural Correlates
Barrett, F. S., & Griffiths, R. R. (2017) · Current Topics in Behavioral Neurosciences · doi:10.1007/7854_2017_474 · Cited by 273
Self-citationPsilocybin – Summary of knowledge and new perspectives
Tylš, F., Páleníček, T., & Horáček, J. (2014) · European Neuropsychopharmacology · doi:10.1016/j.euroneuro.2013.12.006 · Cited by 276
Neuropharmacology of N,N-dimethyltryptamine
Carbonaro, T. M., & Gatch, M. B. (2016) · Brain Research Bulletin · doi:10.1016/j.brainresbull.2016.04.016 · Cited by 268
Mason, N. L., Kuypers, K. P. C., Müller, F., Reckweg, J., Tse, D. H. Y., Toennes, S. W., Hutten, N. R. P. W., Jansen, J. F. A., Stiers, P., Feilding, A., et al. (2020) · Neuropsychopharmacology · doi:10.1038/s41386-020-0718-8 · Cited by 258
Classical psychedelics for the treatment of depression and anxiety: A systematic review
Muttoni, S., Ardissino, M., & John, C. (2019) · Journal of Affective Disorders · doi:10.1016/j.jad.2019.07.076 · Cited by 256
Distinct acute effects of LSD, MDMA, and d-amphetamine in healthy subjects
Holze, F., Vizeli, P., Müller, F., Ley, L., Duerig, R., Varghese, N., Eckert, A., Borgwardt, S., & Liechti, M. E. (2020) · Neuropsychopharmacology · doi:10.1038/s41386-019-0569-3 · Cited by 247
Carhart-Harris, R. L., Leech, R., Williams, T. M., Erritzoe, D., Abbasi, N., Bargiotas, T., Hobden, P., Sharp, D. J., Evans, J., Feilding, A., et al. (2012) · British Journal of Psychiatry · doi:10.1192/bjp.bp.111.103309 · Cited by 237
Long-lasting subjective effects of LSD in normal subjects.
Schmid, Y., & Liechti, M. E. (2018) · Psychopharmacology · doi:10.1007/s00213-017-4733-3 · Cited by 232
Hartogsohn, I. (2018) · Frontiers in Neuroscience · doi:10.3389/fnins.2018.00129 · Cited by 229
A systematic study of microdosing psychedelics
Polito, V., & Stevenson, R. J. (2019) · PLoS ONE · doi:10.1371/journal.pone.0211023 · Cited by 235
Psychedelics in Psychiatry: Neuroplastic, Immunomodulatory, and Neurotransmitter Mechanisms
Inserra, A., De Gregorio, D., & Gobbi, G. (2021) · Pharmacological Reviews · doi:10.1124/pharmrev.120.000056 · Cited by 232
Aday, J. S., Heifets, B. D., Pratscher, S. D., Bradley, E., Rosen, R., & Woolley, J. D. (2022) · Psychopharmacology · doi:10.1007/s00213-022-06123-7 · Cited by 237
Psychedelics, personality and political perspectives.
Nour, M. M., Evans, L., & Carhart-Harris, R. L. (2017) · Journal of Psychoactive Drugs · doi:10.1080/02791072.2017.1312643 · Cited by 226
Developing Guidelines and Competencies for the Training of Psychedelic Therapists
Phelps, J. (2017) · Journal of Humanistic Psychology · doi:10.1177/0022167817711304 · Cited by 225
Breeksema, J. J., Niemeijer, A. R., Krediet, E., Vermetten, E., & Schoevers, R. A. (2020) · CNS Drugs · doi:10.1007/s40263-020-00748-y · Cited by 224
Aday, J. S., Davis, A. K., Mitzkovitz, C. M., Bloesch, E. K., & Davoli, C. C. (2021) · ACS Pharmacology & Translational Science · doi:10.1021/acsptsci.1c00014 · Cited by 224
Sampedro, F., de la Fuente Revenga, M., Valle, M., Roberto, N., Domínguez-Clavé, E., Elices, M., Luna, L. E., Crippa, J. A. S., Hallak, J. E. C., de Araujo, D. B., et al. (2017) · International Journal of Neuropsychopharmacology · doi:10.1093/ijnp/pyx036 · Cited by 200
Clinical applications of hallucinogens: a review
Garcia-Romeu, A., Kersgaard, B., & Addy, P. H. (2016) · Experimental and Clinical Psychopharmacology · doi:10.1037/pha0000084 · Cited by 201
Alterations of consciousness and mystical-type experiences after acute LSD in humans
Liechti, M. E., Dolder, P. C., & Schmid, Y. (2017) · Psychopharmacology · doi:10.1007/s00213-016-4453-0 · Cited by 198
Swift, T. C., Belser, A. B., Agin-Liebes, G., Devenot, N., Terrana, S., Friedman, H. L., Guss, J., Bossis, A. P., & Ross, S. (2017) · Journal of Humanistic Psychology · doi:10.1177/0022167817715966 · Cited by 195
Madsen, M. K., Fisher, P. M., Stenbæk, D. S., Kristiansen, S., Burmester, D., Lehel, S., Páleníček, T., Kuchař, M., Svarer, C., Ozenne, B., et al. (2020) · European Neuropsychopharmacology · doi:10.1016/j.euroneuro.2020.02.001 · Cited by 183
Smigielski, L., Kometer, M., Scheidegger, M., Krähenmann, R., Huber, T., & Vollenweider, F. X. (2019) · Scientific Reports · doi:10.1038/s41598-019-50612-3 · Cited by 176
Therapeutic Use of LSD in Psychiatry: A Systematic Review of Randomized-Controlled Clinical Trials
Fuentes, J. J., Fonseca, F., Elices, M., Farré, M., & Torrens, M. (2020) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2019.00943 · Cited by 177
Wolfson, P. E., Andries, J., Feduccia, A. A., Jerome, L., Wang, J. B., Williams, E., Carlin, S. C., Sola, E., Hamilton, S., Yazar-Klosinski, B., et al. (2020) · Scientific Reports · doi:10.1038/s41598-020-75706-1 · Cited by 169
Davis, A. K., Barrett, F. S., So, S., Gukasyan, N., Swift, T. C., & Griffiths, R. R. (2021) · Journal of Psychopharmacology · doi:10.1177/0269881120967878 · Cited by 169
Self-citationKetamine for the treatment of addiction: evidence and potential mechanisms
Ivan Ezquerra-Romano, I., Lawn, W., Krupitsky, E., & Morgan, C. J. A. (2018) · Neuropharmacology · doi:10.1016/j.neuropharm.2018.01.017 · Cited by 163
Wagner, M. T., Mithoefer, M. C., Mithoefer, A. T., MacAulay, R. K., Jerome, L., Yazar-Klosinski, B., & Doblin, R. (2017) · Journal of Psychopharmacology · doi:10.1177/0269881117711712 · Cited by 160
Psychedelic Drugs in Biomedicine
Kyzar, E. J., Nichols, C. D., Gainetdinov, R. R., Nichols, D. E., & Kalueff, A. V. (2017) · Trends in Pharmacological Sciences · doi:10.1016/j.tips.2017.08.003 · Cited by 155
Psychedelic harm reduction and integration: A transtheoretical model for clinical practice
Gorman, I., Nielson, E. M., Molinar, A., Cassidy, K., & Sabbagh, J. (2021) · Frontiers in Psychology · doi:10.3389/fpsyg.2021.645246 · Cited by 147
Davis, A. K., So, S., Lancelotta, R., Barsuglia, J. P., & Griffiths, R. R. (2019) · The American Journal of Drug and Alcohol Abuse · doi:10.1080/00952990.2018.1545024 · Cited by 142
Self-citationPeill, J. M., Trinci, K. E., Kettner, H., Mertens, L. J., Roseman, L., Timmermann, C., Rosas, F. E., Lyons, T., & Carhart-Harris, R. L. (2022) · Journal of Psychopharmacology · doi:10.1177/02698811211066709 · Cited by 141
Jefsen, O. H., Elfving, B., Wegener, G., & Müller, H. K. (2021) · Journal of Psychopharmacology · doi:10.1177/0269881120959614 · Cited by 127
Agin-Liebes, G., Haas, T. F., Lancelotta, R., Uthaug, M. V., Ramaekers, J. G., & Davis, A. K. (2021) · ACS Pharmacology & Translational Science · doi:10.1021/acsptsci.1c00018 · Cited by 124
Therapeutic infusions of ketamine: do the psychoactive effects matter?
Dakwar, E., Anerella, C., Hart, C. L., Levin, F. R., Mathew, S. J., & Nunes, E. V. (2014) · Drug and Alcohol Dependence · doi:10.1016/j.drugalcdep.2013.12.019 · Cited by 123
Reiche, S., Hermle, L., Gutwinski, S., Jungaberle, H., Gasser, P., & Majić, T. (2018) · Progress in Neuro-Psychopharmacology and Biological Psychiatry · doi:10.1016/j.pnpbp.2017.09.012 · Cited by 122
Health status of ayahuasca users
Barbosa, P. C. R., Mizumoto, S., Bogenschutz, M. P., & Strassman, R. J. (2012) · Drug Testing and Analysis · doi:10.1002/dta.1383 · Cited by 112
Jiménez-Garrido, D. F., Gómez-Sousa, M., Ona, G., Dos Santos, R. G., Hallak, J. E. C., Alcázar-Córcoles, M. Á., & Bouso, J. C. (2020) · Scientific Reports · doi:10.1038/s41598-020-61169-x · Cited by 110
Carhart-Harris, R. L., Wall, M. B., Erritzoe, D., Kaelen, M., Ferguson, B., De Meer, I., Tanner, M., Bloomfield, M., Williams, T. M., Bolstridge, M., et al. (2014) · The International Journal of Neuropsychopharmacology · doi:10.1017/s1461145713001405 · Cited by 108
Garcia-Romeu, A., Barrett, F. S., Carbonaro, T. M., Johnson, M. W., & Griffiths, R. R. (2021) · Journal of Psychopharmacology · doi:10.1177/0269881121991822 · Cited by 96
Self-citationRothberg, R. L., Azhari, N., Haug, N. A., & Dakwar, E. (2021) · Journal of Psychopharmacology · doi:10.1177/0269881120970879 · Cited by 97
Drug-drug interactions between psychiatric medications and MDMA or psilocybin: a systematic review
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Heuschkel, K., & Kuypers, K. P. C. (2020) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2020.00224 · Cited by 86
Dakwar, E., Nunes, E. V., Hart, C. L., Hu, M. C., Foltin, R. W., & Levin, F. R. (2018) · Neuropharmacology · doi:10.1016/j.neuropharm.2018.01.005 · Cited by 85
Combining Psychedelic and Mindfulness Interventions: Synergies to Inform Clinical Practice
Payne, J. E., Chambers, R., & Liknaitzky, P. (2021) · ACS Pharmacology & Translational Science · doi:10.1021/acsptsci.1c00034 · Cited by 78
More Realistic Forecasting of Future Life Events After Psilocybin for Treatment-Resistant Depression
Lyons, T., & Carhart-Harris, R. L. (2018) · Frontiers in Psychology · doi:10.3389/fpsyg.2018.01721 · Cited by 77
Morton, E., Sakai, K., Ashtari, A., Pleet, M., Michalak, E. E., & Woolley, J. (2023) · Journal of Psychopharmacology · doi:10.1177/02698811221131997 · Cited by 78
Modulation of Social Cognition via Hallucinogens and “Entactogens”
Preller, K. H., & Vollenweider, F. X. (2019) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2019.00881 · Cited by 71
Psilocybin in neuropsychiatry: a review of its pharmacology, safety, and efficacy
Dodd, S., Norman, T. R., Eyre, H. A., Stahl, S. M., Phillips, A., Carvalho, A. F., & Berk, M. (2023) · CNS Spectrums · doi:10.1017/s1092852922000888 · Cited by 73
Positive psychology in the investigation of psychedelics and entactogens: a critical review
Jungaberle, H., Thal, S., Zeuch, A., Rougemont-Bücking, A., von Heyden, M., Aicher, H., & Scheidegger, M. (2018) · Neuropharmacology · doi:10.1016/j.neuropharm.2018.06.034 · Cited by 70
Psychedelics and psychotherapy
Nayak, S., & Johnson, M. W. (2021) · Pharmacopsychiatry · doi:10.1055/a-1312-7297 · Cited by 71
Zeifman, R. J., & Wagner, A. C. (2020) · Journal of Contextual Behavioral Science · doi:10.1016/j.jcbs.2019.11.001 · Cited by 67
Giluk (2009) · doi:10.1017/s003329172000389x · Cited by 68
Davis, A. K., Xin, Y., Sepeda, N. D., Garcia-Romeu, A., & Williams, M. T. (2021) · Chronic Stress · doi:10.1177/24705470211035607 · Cited by 67
Stauffer, C. S., Anderson, B. T., Ortigo, K. M., & Woolley, J. (2021) · ACS Pharmacology & Translational Science · doi:10.1021/acsptsci.0c00169 · Cited by 65
van Mulukom, V., Patterson, R. E., & van Elk, M. (2020) · Psychopharmacology · doi:10.1007/s00213-020-05568-y · Cited by 62
Psychological variables implied in the therapeutic effect of ayahuasca: A contextual approach
Franquesa, A., Sainz-Cort, A., Gandy, S., Soler, J., Alcázar-Córcoles, M. Á., & Bouso, J. C. (2018) · Psychiatry Research · doi:10.1016/j.psychres.2018.04.012 · Cited by 58
Elsey, J. W. B. (2017) · Drug Science Policy and Law · doi:10.1177/2050324517723232 · Cited by 57
Luoma, J. B., Sabucedo, P., Eriksson, J., Gates, N., & Pilecki, B. C. (2019) · Journal of Contextual Behavioral Science · doi:10.1016/j.jcbs.2019.10.003 · Cited by 56
Studies with psychedelic drugs in human volunteers
Sellers, E. M., Romach, M. K., & Leiderman, D. B. (2018) · Neuropharmacology · doi:10.1016/j.neuropharm.2017.11.029 · Cited by 42
Metadata
- Authors
- Griffiths, R., Richards, W., Johnson, M., McCann, U., & Jesse, R.
- Affiliations
- Johns Hopkins University (US)
- Johns Hopkins Bayview Medical Center (US)
- Council on Spiritual Practices, San Francisco, CA, USA
- Corresponding author
- Griffiths, RR
- Venue
- Journal of Psychopharmacology
- Publisher
- SAGE Publications
- Published
- 2008-05-30
- Volume
- 22
- Issue
- 6
- Pages
- 621-632
- ISSN
- 0269-8811 (ISSN-L)
- 1461-7285
- PMC
- PMC3050654
- OpenAlex
- W2119738402
- Semantic Scholar
- 8b54ddd9e7bd7d50e17fd859f71038906017cf13
- Cited by
- 905
- References
- 49
- Citations by year
- 2026: 57 · 2025: 98 · 2024: 89 · 2023: 89 · 2022: 101 · 2021: 79 · 2020: 65 · 2019: 29 · 2018: 54 · 2017: 44 · 2016: 46 · 2015: 16 · 2014: 31 · 2013: 24 · 2012: 26
- FWCI
- 20.58
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Journal of Psychopharmacology (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- Heffter Research Institute
- National Institute on Drug Abuse (R01DA003889)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Psychedelics and Drug Studies
- Social Sciences › Health › Religion, Spirituality, and Psychology
- Social Sciences › Psychology › Social Psychology › Paranormal Experiences and Beliefs
- Keywords
- psilocybin, mystical experience, personal meaning, spiritual meaning, long-term effects, life satisfaction, well-being, spirituality, religious experience, personality, quality of life
- MeSH terms
- Administration, Oral, Adult, Affect, Female, Follow-Up Studies, Hallucinogens, Humans, Male, Middle Aged, Mysticism, Personality, Psilocybin, Quality of Life, Surveys and Questionnaires, Religion, Time Factors, Knowledge, Spirituality
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