Evidence map›Paper›PMID 26819336›Full record

ArticleJournal of the Royal Society, Interface2016

Large-scale signatures of unconsciousness are consistent with a departure from critical dynamics.

Enzo Tagliazucchi, Dante R Chialvo, Michael Siniatchkin, Enrico Amico, Jean-Francois Brichant, Vincent Bonhomme, Quentin Noirhomme, Helmut Laufs, Steven Laureys

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the Royal Society, Interface, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed, 1 pooled it
13.0field-weighted citation impact, top 1% 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

96 citing papers in PubMed, 1 synthesis or guideline pooled it, 206 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Cortical Mechanisms Contributing to Ketamine-Induced Dissociation.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Genetic contributions to brain criticality and its relationship with human cognitive functions.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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  18. Review
  19. Review
  20. Article

36 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 3 countries.

Enzo TagliazucchiInstitute for Medical Psychology, Christian Albrechts University Kiel, 24105 Kiel, Germany Department of Neurology and Brain Imaging Center, Goethe University Frankfurt am Main, Frankfurt am Main, 60528 Frankfurt am Main, Germany tagliazucchi.enzo@googlemail.com.
Dante R ChialvoComision Nacional de Investigaciones Cientificas y Tecnologicas (CONICET), Buenos Aires, Argentina.
Michael SiniatchkinInstitute for Medical Psychology, Christian Albrechts University Kiel, 24105 Kiel, Germany.
Enrico AmicoComa Science Group, GIGA Research and Cyclotron Research Center, University and University Hospital of Liège, Liège, Belgium.
Jean-Francois BrichantComa Science Group, GIGA Research and Cyclotron Research Center, University and University Hospital of Liège, Liège, Belgium.
Vincent BonhommeComa Science Group, GIGA Research and Cyclotron Research Center, University and University Hospital of Liège, Liège, Belgium.
Quentin NoirhommeComa Science Group, GIGA Research and Cyclotron Research Center, University and University Hospital of Liège, Liège, Belgium.
Helmut LaufsDepartment of Neurology and Brain Imaging Center, Goethe University Frankfurt am Main, Frankfurt am Main, 60528 Frankfurt am Main, Germany Department of Neurology, Christian Albrechts University Kiel, 24104 Kiel, Germany.
Steven LaureysComa Science Group, GIGA Research and Cyclotron Research Center, University and University Hospital of Liège, Liège, Belgium.
University of Liège · BEKiel University · DEConsejo Nacional de Investigaciones Científicas y Técnicas · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Loss of cortical integration and changes in the dynamics of electrophysiological brain signals characterize the transition from wakefulness towards unconsciousness. In this study, we arrive at a basic model explaining these observations based on the theory of phase transitions in complex systems. We studied the link between spatial and temporal correlations of large-scale brain activity recorded with functional magnetic resonance imaging during wakefulness, propofol-induced sedation and loss of consciousness and during the subsequent recovery. We observed that during unconsciousness activity in frontothalamic regions exhibited a reduction of long-range temporal correlations and a departure of functional connectivity from anatomical constraints. A model of a system exhibiting a phase transition reproduced our findings, as well as the diminished sensitivity of the cortex to external perturbations during unconsciousness. This framework unifies different observations about brain activity during unconsciousness and predicts that the principles we identified are universal and independent from its causes.

Indexed as

Models, NeurologicalUnconsciousnessAdolescentAdultBrainDeep SedationFemaleHumansMagnetic Resonance ImagingMalePropofolRadiographyWakefulnessPropofolanaesthesiacomplex systemsconsciousnessfMRIphase transitions

Identifiers

PMID26819336
PMCPMC4759808
OpenAlexW2268985877

What OpenQuestion holds

Textmetadata
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.