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Related Experiment Videos

Network memory

J M Fuster1

  • 1Brain Research Institute, School of Medicine, University of California, Los Angeles 90024, USA.

Trends in Neurosciences
|November 5, 1997
PubMed
Summary
This summary is machine-generated.

Primate memory is not localized but distributed across cortical systems. Memories are formed by interconnected neurons, with perception and motor skills organized hierarchically in the neocortex.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Primate Memory

Background:

  • Traditional neuropsychology localized distinct memories to specific brain areas.
  • A paradigm shift is occurring in understanding cortical memory organization.

Purpose of the Study:

  • To re-evaluate the cortical organization of primate memory.
  • To propose a new framework viewing memory as a distributed property of cortical systems.

Main Methods:

  • Conceptual analysis of existing neuropsychological and neuroscientific theories.
  • Integration of findings on neural networks and cortical function.

Main Results:

  • Memory is viewed as a distributed property of cortical systems, not localized to specific regions.

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  • The same cortical systems used for perception and action also support memory.
  • Memories are networks of interconnected cortical neurons formed by association.
  • Perceptual and motor memory networks exhibit hierarchical organization in the neocortex.

    • Conclusions:

    • The focus shifts from 'systems of memory' to the 'memory of systems'.
    • Recall, recognition, and working memory involve the reactivation of these neural networks through association.