Evidence map›Paper›PMID 33043883›Full record

ArticleeLife2020

DMT alters cortical travelling waves.

Andrea Alamia, Christopher Timmermann, David J Nutt, Rufin VanRullen, Robin L Carhart-Harris

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in eLife, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
3.9field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

48 citing papers in PubMed, 82 citations in OpenAlex.

  1. Trial
  2. Psychological and physiological effects of extended DMT.Journal of psychopharmacology (Oxford, England) · 2024
    Trial
  3. Trial
  4. Moving beyond 5-HTPsychopharmacology · 2026
    Article
  5. Article
  6. Article
  7. Learning as the unifying mechanism of psychedelic action.Journal of psychopharmacology (Oxford, England) · 2026
    Review
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  11. Article
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  14. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Andrea Alamia *Cerco, CNRS Université de Toulouse, Toulouse, France.ORCID https://orcid.org/0000-0001-9826-2161
Christopher Timmermann *Computational, Cognitive and Clinical Neuroscience Laboratory (C3NL), Faculty of Medicine, Imperial College, London, United Kingdom.ORCID https://orcid.org/0000-0002-2281-377X
David J NuttCentre for Psychedelic Research, Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, United Kingdom.
Rufin VanRullen *Cerco, CNRS Université de Toulouse, Toulouse, France.ORCID https://orcid.org/0000-0002-3611-7716
Robin L Carhart-Harris *Centre for Psychedelic Research, Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, United Kingdom.
Imperial College London · GBCentre National de la Recherche Scientifique · FR

Funding

CRCNS ANR-NSF ANR-19-NEUC-0004
6 · The paper itself

Abstract

Psychedelic drugs are potent modulators of conscious states and therefore powerful tools for investigating their neurobiology. N,N, Dimethyltryptamine (DMT) can rapidly induce an extremely immersive state of consciousness characterized by vivid and elaborate visual imagery. Here, we investigated the electrophysiological correlates of the DMT-induced altered state from a pool of participants receiving DMT and (separately) placebo (saline) while instructed to keep their eyes closed. Consistent with our hypotheses, results revealed a spatio-temporal pattern of cortical activation (i.e. travelling waves) similar to that elicited by visual stimulation. Moreover, the typical top-down alpha-band rhythms of closed-eyes rest were significantly decreased, while the bottom-up forward wave was significantly increased. These results support a recent model proposing that psychedelics reduce the 'precision-weighting of priors', thus altering the balance of top-down versus bottom-up information passing. The robust hypothesis-confirming nature of these findings imply the discovery of an important mechanistic principle underpinning psychedelic-induced altered states.

Indexed as

AdultAlpha RhythmBrainConsciousnessFemaleHallucinogensHumansMaleMiddle AgedN,N-DimethyltryptamineYoung AdultHallucinogensN,N-Dimethyltryptamineconscious perceptionDMTeeg oscillationshumanneuroscienceN,N, Dimethyltryptaminetravelling wavesvisual hallucinations

Identifiers

PMID33043883
PMCPMC7577737
OpenAlexW3092035884

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.