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Related Experiment Video

Creating Objects and Object Categories for Studying Perception and Perceptual Learning
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Categorization is 'baked' into the brain.

Lisa Feldman Barrett1,2,3, Earl K Miller4,5

  • 1Department of Psychology, Northeastern University, Boston, MA, USA. l.barrett@northeastern.edu.

Nature Reviews. Neuroscience
|April 13, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

Categorization, essential for behavior, is not just memory retrieval but an ongoing brain process. This neural computation begins early in signal processing, influencing perception from the start.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Computational Neuroscience

Background:

  • Categorization is traditionally viewed as a late-stage cognitive process.
  • This process involves feature detection and memory-based representation assignment.

Purpose of the Study:

  • To challenge the traditional view of categorization.
  • To propose categorization as an early and continuous process in neural signal processing.

Main Methods:

  • Review of evidence from neuroanatomy.
  • Analysis of electrophysiology data.
  • Synthesis of brain imaging and cognitive science findings.

Main Results:

  • Categorization is not solely a function of memory.
  • It occurs throughout signal processing, starting from initial stages.
  • Predictive feedback signals create neural context for feedforward processing.

    • Conclusions:

    • Categorization is a fundamental computational strategy of the brain.
    • This process is integral to perception, not an endpoint.
    • Findings have implications for understanding neuropsychiatric disorders.