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Working memory, attention, and salience in active inference.

Thomas Parr1, Karl J Friston2

  • 1Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, WC1N 3BG, London, UK. thomas.parr.12@ucl.ac.uk.

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Summary
This summary is machine-generated.

This study disambiguates attention and salience using active inference. Salience relates to actions with epistemic affordance, while attention focuses on precise sensory evidence and beliefs about sensation causes.

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Area of Science:

  • Cognitive Neuroscience
  • Theoretical Neurobiology
  • Computational Psychiatry

Background:

  • Working memory and attention are key psychological concepts with overlapping terminology across disciplines.
  • Disciplinary differences in terminology hinder clear communication in cognitive and neuroscientific research.

Purpose of the Study:

  • To disambiguate the psychological constructs of attention and salience.
  • To link established psychological concepts to formal mathematical descriptions of brain function.
  • To explore attention and salience through the lens of active inference.

Main Methods:

  • Utilizing active inference principles and computational simulations.
  • Modeling message passing between neuronal populations in cortical and subcortical structures.
  • Applying variational principles to formalize neurobiological processes.

Main Results:

  • Demonstrated how active inference can differentiate attention and salience.
  • Proposed that salience is afforded to actions realizing epistemic affordance.
  • Suggested attention is afforded to precise sensory evidence or beliefs about sensory causes.

Conclusions:

  • Active inference provides a formal framework for understanding attention and salience.
  • Distinguishing between salience and attention clarifies their distinct roles in cognitive processing.
  • This work bridges psychological constructs with mathematical models of neural computation.