Evidence map›Paper›PMID 35511398›Full record

ArticleNeuroinformatics2022

Complexity of Brain Dynamics as a Correlate of Consciousness in Anaesthetized Monkeys.

Nicolas Fuentes, Alexis Garcia, Ramón Guevara, Roberto Orofino, Diego M Mateos

Abstract read
PubMed Publisher
In one paragraph

Article in Neuroinformatics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 37% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Review
  2. Article
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

5 authors at 4 institutions in 2 countries.

Nicolas FuentesFacultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina.
Alexis GarciaFacultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina.
Ramón GuevaraDepartment of Physics and Astronomy, University of Padua, Padua, Italy.
Roberto OrofinoHospital de Ninos Pedro de Elizalde, Buenos Aires, Argentina.
Diego M MateosConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina. mateosdiego@gmail.com.ORCID 0000-0002-1953-0875
Universidad Nacional de Córdoba · ARConsejo Nacional de Investigaciones Científicas y Técnicas · ARHospital Pedro de Elizalde · ARUniversity of Padua · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The use of anaesthesia is a fundamental tool in the investigation of consciousness. Anesthesia procedures allow to investigate different states of consciousness from sedation to deep anesthesia within controlled scenarios. In this study we use information quantifiers to measure the complexity of electrocorticogram recordings in monkeys. We apply these metrics to compare different stages of general anesthesia for evaluating consciousness in several anesthesia protocols. We find that the complexity of brain activity can be used as a correlate of consciousness. For two of the anaesthetics used, propofol and medetomidine, we find that the anaesthetised state is accompanied by a reduction in the complexity of brain activity. On the other hand we observe that use of ketamine produces an increase in complexity measurements. We relate this observation with increase activity within certain brain regions associated with the ketamine used doses. Our measurements indicate that complexity of brain activity is a good indicator for a general evaluation of different levels of consciousness awareness, both in anesthetized and non anesthetizes states.

Indexed as

AnestheticsKetaminePropofolAnesthesia, GeneralAnimalsBrainConsciousnessElectroencephalographyHaplorhiniMedetomidineAnestheticsKetamineMedetomidinePropofolAnaestheticsBrain dynamicsComplexityConsciousnessEntropy

Identifiers

PMID35511398
OpenAlexW4229041993

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.