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Plain English Summary
Here's a fascinating question: are near-death experiences something mystical, or can your brain cook them up with the right chemistry? Researchers gave 13 healthy volunteers DMT — a powerful psychedelic — intravenously in a controlled, placebo-compared study, then measured their experiences using the same validated scale used to assess actual near-death experiences. Every single participant scored above the near-death threshold after DMT, with a massive statistical effect size of 3.09 (that's enormous in psychology research). When compared with reports from people who'd had real near-death experiences, the scores were remarkably similar — the only real difference was that DMT users didn't feel they'd reached a 'point of no return.' The DMT experiences strongly correlated with feelings of ego dissolution (your sense of self melting away) and mystical states. Interestingly, people who were more prone to unusual beliefs beforehand had more intense experiences. This strongly suggests the brain has built-in machinery capable of generating the full near-death experience through serotonin pathways, lending weight to neurobiological rather than supernatural explanations.
Research Notes
First controlled study to formally quantify the overlap between DMT and actual NDEs using a validated NDE scale. Central to the NDE consciousness debate: if a serotonergic drug reproducibly generates the full NDE phenomenological profile in healthy participants, this supports neurobiological rather than transcendent explanations. The finding that personality traits (absorption, delusional ideation) predict NDE intensity parallels findings in actual NDE research.
Intravenous DMT (7–20 mg) was administered to 13 healthy volunteers in a within-subjects, placebo-controlled, single-blind study to test whether the psychedelic experience overlaps phenomenologically with near-death experiences (NDEs). Using the Greyson NDE scale as the primary outcome, all 13 participants scored above the NDE threshold (≥7) after DMT, with a massive effect (t = 10.91, p = 1.39×10⁻⁷, d = 3.09). Ten of 16 NDE items reached significance after correction. Comparison with a matched sample of 13 actual NDE experiencers revealed comparable total scores (d = 0.49, p = 0.089), with only 'point of no return' differing significantly. NDE scores correlated strongly with ego dissolution (r = 0.69) and mystical experience (r = 0.90). Baseline delusional ideation predicted NDE intensity. These results demonstrate striking phenomenological overlap between DMT experiences and actual NDEs.
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Related Papers
Cites
Companion
- AWARE--AWAreness during REsuscitation--A prospective study — Parnia, Sam (2014)
- "Reality" of near-death-experience memories: evidence from a psychodynamic and electrophysiological integrated study — Palmieri, Arianna (2014)
- Non-local Consciousness: A Concept Based on Scientific Research on Near-Death Experiences During Cardiac Arrest — van Lommel, Pim (2013)
- The Mystical Experience and Its Neural Correlates — Woollacott, Marjorie (2020)
- Neural correlates of the psychedelic state as determined by fMRI studies with psilocybin — Carhart-Harris, Robin L (2012)
Cited By
- Neuro-Functional Modeling of Near-Death Experiences in Contexts of Altered States of Consciousness — Romand, Raymond (2023)
- The Central Clinical Relevance of Near-Death Experiences in Acute Care Contexts — Michael, Pascal (2025)
- The Near-Death Experience Content (NDE-C) scale: Development and psychometric validation — Martial, Charlotte (2020)
Also by these authors
Qualitative thematic analysis of the phenomenology of near-death experiences
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Characteristics of Near-Death Experiences Memories as Compared to Real and Imagined Events Memories
More in Nde
Explanation of Near-Death Experiences: A Systematic Analysis of Case Reports and Qualitative Research
AWAreness during REsuscitation - II: A Multi-Center Study of Consciousness and Awareness in Cardiac Arrest
Which Near-Death Experience Features Are Associated with Reduced Fear of Death?
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📋 Cite this paper
Timmermann, Christopher, Roseman, Leor, Williams, Luke, Erritzoe, David, Martial, Charlotte, Cassol, Héléna, Laureys, Steven, Nutt, David, Carhart-Harris, Robin (2018). DMT Models the Near-Death Experience. Frontiers in Psychology. https://doi.org/10.3389/fpsyg.2018.01424
@article{timmermann_2018_dmt_nde,
title = {DMT Models the Near-Death Experience},
author = {Timmermann, Christopher and Roseman, Leor and Williams, Luke and Erritzoe, David and Martial, Charlotte and Cassol, Héléna and Laureys, Steven and Nutt, David and Carhart-Harris, Robin},
year = {2018},
journal = {Frontiers in Psychology},
doi = {10.3389/fpsyg.2018.01424},
}