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D. Yaden

The Subjective Effects of Psychedelics Are Necessary for Their Enduring Therapeutic Effects

March 14, 2022 / Papers / Leave a Comment / By / ,

Abstract

Classic psychedelics produce altered states of consciousness that individuals often interpret as meaningful experiences. Across a number of human studies, when the participant-rated intensity of the overall drug effects are statistically controlled for, certain subjective effects predict therapeutic and other desirable outcomes. Underlying neurobiological mechanisms are likely necessary but not sufficient to confer full and enduring beneficial effects. We propose that the subjective effects of psychedelics are necessary for their enduring beneficial effects and that these subjective effects account for the majority of their benefit.

Yaden, D. B., & Griffiths, R. R. (2020). The Subjective Effects of Psychedelics Are Necessary for Their Enduring Therapeutic Effects. ACS pharmacology & translational science, 4(2), 568–572. https://doi.org/10.1021/acsptsci.0c00194

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Of Roots and Fruits A Comparison of Psychedelic and Nonpsychedelic Mystical Experiences

October 24, 2016 / Papers, Psychology, Publications / By / , , , , , ,

Abstract

Experiences of profound existential or spiritual significance can be triggered reliably through psychopharmacological means using psychedelic substances. However, little is known about the benefits of religious, spiritual, or mystical experiences (RSMEs) prompted by psychedelic substances, as compared with those that occur through other means. In this study, 739 self-selected participants reported the psychological impact of their RSMEs and indicated whether they were induced by a psychedelic substance. Experiences induced by psychedelic substances were rated as more intensely mystical (d = .75, p < .001), resulted in a reduced fear of death (d = .21, p < .01), increased sense of purpose (d = .18, p < .05), and increased spirituality (d = .28, p < .001) as compared with nonpsychedelically triggered RSMEs. These results remained significant in an expanded model controlling for gender, education, socioeconomic status, and religious affiliation. These findings lend support to the growing consensus that RSMEs induced with psychedelic substances are genuinely mystical and generally positive in outcome.

Yaden, D. B., Le Nguyen, K. D., Kern, M. L., Belser, A. B., Eichstaedt, J. C., Iwry, J., … & Newberg, A. B. (2016). Of Roots and Fruits A Comparison of Psychedelic and Nonpsychedelic Mystical Experiences. Journal of Humanistic Psychology, 0022167816674625.
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