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Consciousness can be defined as the state of being aware of and able to think about one's existence, sensations, and surroundings. It encompasses two major components: awareness and arousal. Awareness pertains to the recognition of environmental stimuli and internal states. At the same time, arousal refers to the physiological readiness to engage with these stimuli, which varies significantly between states like sleep and wakefulness.
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A conceptual framework for consciousness.

Michael S A Graziano1

  • 1Department of Psychology, Princeton University, Princeton, NJ 08544.

Proceedings of the National Academy of Sciences of the United States of America
|April 29, 2022
PubMed
Summary
This summary is machine-generated.

This study presents a rational framework for consciousness, introducing the Attention Schema Theory. It explores the evolution of consciousness from fish to humans, highlighting its adaptive roles in cognition and behavior.

Keywords:
attentionawarenessconsciousnessevolutiontheory of mind

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Philosophy of Mind

Background:

  • Traditional explanations of consciousness often lack logical rigor.
  • Information processing in the brain provides foundational principles for a scientific framework.
  • The Attention Schema Theory (AST) offers a specific model grounded in these principles.

Purpose of the Study:

  • To establish a logically sound, explanatory framework for consciousness.
  • To present the Attention Schema Theory and supporting evidence.
  • To elucidate the evolutionary trajectory and adaptive significance of consciousness.

Main Methods:

  • Deductive reasoning from principles of neural information processing.
  • Detailed exposition of the Attention Schema Theory.
  • Review and synthesis of experimental evidence (behavioral, neuroimaging, computational modeling).
  • Evolutionary analysis of consciousness across species.

Main Results:

  • A comprehensive framework for understanding consciousness is proposed.
  • The Attention Schema Theory is presented as a viable scientific model.
  • Evidence supporting the Attention Schema Theory has accumulated across multiple domains.
  • A novel account of the evolution of consciousness is outlined.

Conclusions:

  • Consciousness can be explained through a rational, scientific framework.
  • The Attention Schema Theory provides a robust model for consciousness research.
  • Understanding consciousness's adaptive roles is key to its scientific explanation and evolutionary history.