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Ramón Guevara

6 papers in the library · 27 citations · publishing 2017-2024

Papers

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Unifying biophysical consciousness theories with MaxCon: maximizing configurations of brain connectivity.

Frontiers in Systems Neuroscience July 29, 2024 Jose Luis Perez Velazquez, Diego Martin Mateos, Ramón Guevara et al. 4 citations

There is such a vast proliferation of scientific theories of consciousness that it is worrying some scholars. There are even competitions to test different theories, and the results are inconclusive. Consciousness research, far from converging toward a unifying framework, is becoming more discordant than ever, especially with respect to theoretical elements that do not have a clear...

Is the tendency to maximise energy distribution an optimal collective activity for biological purposes? A proposal for a global principle of biological organization

Heliyon March 30, 2023 Jose Luis Perez Velazquez, Diego Martin Mateos, Ramón Guevara 6 citations

Our purpose is to address the biological problem of finding foundations of the organization in the collective activity among cell networks in the nervous system, at the meso/macroscale, giving rise to cognition and consciousness. But in doing so, we encounter another problem related to the interpretation of methods to assess the neural interactions and organization of the neurodynamics, because...

Qualia and Phenomenal Consciousness Arise From the Information Structure of an Electromagnetic Field in the Brain.

Frontiers in Human Neuroscience 2022 Lawrence M Ward, Ramón Guevara 17 citations

In this paper we address the following problems and provide realistic answers to them: (1) What could be the physical substrate for subjective, phenomenal, consciousness (P-consciousness)? Our answer: the electromagnetic (EM) field generated by the movement and changes of electrical charges in the brain. (2) Is this substrate generated in some particular part of the brains of conscious entities...

DOI: 10.3389/fnhum.2022.874241 (opens in new tab) Full text (opens in new tab) Affordances Electromagnetic field Information structure Phenomenal consciousness +2

Complexity of brain dynamics as a correlate of consciousness in anaesthetized monkeys

bioRxiv Preprint Server August 17, 2021 Nicolas Fuentes, Alexis García, Ramón Guevara et al. preprint

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...

Consciousness as an Emergent Phenomenon: A Tale of Different Levels of Description.

Entropy (Basel, Switzerland) August 22, 2020 Ramón Guevara, Diego M. Mateos, Jose Luis Perez Velazquez

One of the biggest queries in cognitive sciences is the emergence of consciousness from matter. Modern neurobiological theories of consciousness propose that conscious experience is the result of interactions between large-scale neuronal networks in the brain, traditionally described within the realm of classical physics. Here, we propose a generalized connectionist framework in which the...

DOI: 10.3390/e22090921 (opens in new tab) Full text (opens in new tab) Quantum biology Consciousness Brain connectivity Brain dynamics +1

Consciousness as a global property of brain dynamic activity.

Physical review. E December 2017 Diego M. Mateos, Richard Wennberg, Ramón Guevara et al.

We seek general principles of the structure of the cellular collective activity associated with conscious awareness. Can we obtain evidence for features of the optimal brain organization that allows for adequate processing of stimuli and that may guide the emergence of cognition and consciousness? Analyzing brain recordings in conscious and unconscious states, we followed initially the classic...