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Inferring Consciousness in Phylogenetically Distant Organisms.

Peter Godfrey-Smith1

  • 1University of Sydney.

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|April 5, 2024
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This summary is machine-generated.

The neural dynamics of subjectivity (NDS) approach suggests consciousness arises from specific dynamic patterns in nervous systems, not just brain structure. This perspective supports a gradual view of consciousness across diverse animal species.

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Area of Science:

  • Neuroscience
  • Evolutionary Biology
  • Philosophy of Mind

Background:

  • The biological basis of consciousness remains a significant scientific challenge.
  • Existing theories often focus on specific brain architectures, potentially limiting scope.
  • Inferring consciousness in phylogenetically distant animals is complex.

Purpose of the Study:

  • To outline the neural dynamics of subjectivity (NDS) approach to consciousness.
  • To apply NDS to understanding consciousness in diverse animal species.
  • To propose a gradualist evolutionary perspective on consciousness.

Main Methods:

  • Conceptual framework development based on network interactions and dynamic patterns.
  • Comparative analysis of nervous system architectures across animal phyla.
  • Application of NDS principles to infer potential subjective experience in non-human animals.

Main Results:

  • Consciousness is proposed to stem from specific large-scale dynamic patterns, not solely vertebrate brain features.
  • Independent evolution of complex capacities in arthropods, vertebrates, and cephalopods shows conserved dynamic patterns.
  • These conserved patterns suggest a potential link to subjective experience across diverse taxa.

Conclusions:

  • The NDS approach offers a framework for studying consciousness across a wide phylogenetic spectrum.
  • Vertebrate-centric views of consciousness may be too narrow.
  • Consciousness likely exists on a continuum, with variations in degree across species.