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Perceptual suboptimality: Bug or feature?

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Area of Science:

  • Cognitive Neuroscience
  • Computational Neuroscience
  • Perception

Background:

  • The optimality of human perception is debated.
  • Previous research questions whether 'optimal' or 'suboptimal' are appropriate descriptors for perceptual processes.

Purpose of the Study:

  • To investigate the underlying reasons for suboptimal perceptual decisions in humans.
  • To propose a normative explanation for perceptual distortions.

Main Methods:

  • Theoretical analysis of perceptual decision-making.
  • Examination of biological information processing systems.

Main Results:

  • Agrees that 'optimal' vs. 'suboptimal' is not a well-posed question.
  • Proposes that perceptual distortions serve a functional role.

Conclusions:

  • Perceptual distortions are not necessarily errors but may be adaptive.
  • These distortions likely facilitate efficient coding and computation in the brain.