Evidence map›Paper›PMID 33923218›Full record

ArticleBrain sciences2021

Theoretical Models of Consciousness: A Scoping Review.

Davide Sattin, Francesca Giulia Magnani, Laura Bartesaghi, Milena Caputo, Andrea Veronica Fittipaldo, Martina Cacciatore, Mario Picozzi, Matilde Leonardi

Open access · goldAbstract readScoping Review
In one paragraph

Article in Brain sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
7.8field-weighted citation impact, top 2% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 108 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Reflections on Consciousness in Intensive Care.Acta paediatrica (Oslo, Norway : 1992) · 2026
    Review
  6. Article
  7. Neuroimaging and consciousness: applications of PET, SPECT, and advanced MRI modalities.American journal of nuclear medicine and molecular imaging · 2026
    Review
  8. Article
  9. Article
  10. Towards a neuroethological approach to consciousness.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  11. Frontal Disorders and Consciousness: A Review.Current neurology and neuroscience reports · 2025
    Review
  12. Review
  13. The Astroglia Syncytial Theory of Consciousness.International journal of molecular sciences · 2025
    Review
  14. Review
  15. Article
  16. Consciousness Research Through Pain.Healthcare (Basel, Switzerland) · 2025
    Review
  17. Article
  18. On the measurability of consciousness.Frontiers in psychology · 2025
    Article
  19. Article
  20. Review
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

8 authors at 3 institutions in 1 country.

Davide SattinNeurology, Public Health, Disability Unit-Scientific Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy.
Francesca Giulia MagnaniNeurology, Public Health, Disability Unit-Scientific Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy.
Laura BartesaghiNeurology, Public Health, Disability Unit-Scientific Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy.
Milena CaputoNeurology, Public Health, Disability Unit-Scientific Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy.
Andrea Veronica FittipaldoOncology Department, Mario Negri Institute for Pharmacological Research IRCCS, 20156 Milan, Italy.
Martina CacciatoreNeurology, Public Health, Disability Unit-Scientific Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy.
Mario PicozziCenter for Clinical Ethics, Biotechnology and Life Sciences Department, Insubria University, 21100 Varese, Italy.ORCID 0000-0001-5327-4441
Matilde LeonardiNeurology, Public Health, Disability Unit-Scientific Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy.ORCID 0000-0003-0552-8923
Istituti di Ricovero e Cura a Carattere Scientifico · ITUniversity of Insubria · ITMario Negri Institute for Pharmacological Research · IT

Funding

Ministero della Salute RF/GR-2016-02365049Regione Lombardia IX/000407 - 05/08/2010
6 · The paper itself

Abstract

The amount of knowledge on human consciousness has created a multitude of viewpoints and it is difficult to compare and synthesize all the recent scientific perspectives. Indeed, there are many definitions of consciousness and multiple approaches to study the neural correlates of consciousness (NCC). Therefore, the main aim of this article is to collect data on the various theories of consciousness published between 2007-2017 and to synthesize them to provide a general overview of this topic. To describe each theory, we developed a thematic grid called the dimensional model, which qualitatively and quantitatively analyzes how each article, related to one specific theory, debates/analyzes a specific issue. Among the 1130 articles assessed, 85 full texts were included in the prefinal step. Finally, this scoping review analyzed 68 articles that described 29 theories of consciousness. We found heterogeneous perspectives in the theories analyzed. Those with the highest grade of variability are as follows: subjectivity, NCC, and the consciousness/cognitive function. Among sub-cortical structures, thalamus, basal ganglia, and the hippocampus were the most indicated, whereas the cingulate, prefrontal, and temporal areas were the most reported for cortical ones also including the thalamo-cortical system. Moreover, we found several definitions of consciousness and 21 new sub-classifications.

Indexed as

cognitionconsciousnessconsciousness definitionconsciousness theoryneural correlatessubjectivity

Identifiers

PMID33923218
PMCPMC8146510
OpenAlexW3159888642

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.