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A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
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Related Experiment Video

Updated: Dec 13, 2025

Author Spotlight: Investigating Neural Activity of Dentate Gyrus Granule Cells with Miniature Microscope
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Memory Engrams in the Neocortex.

Svenja Brodt1, Steffen Gais1

  • 1University of Tübingen, Tübingen, Germany.

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|July 28, 2020
PubMed
Summary
This summary is machine-generated.

Recent advances allow scientists to track and manipulate memory engram cells in the brain. This review focuses on human studies and neocortical representations, highlighting new noninvasive methods for engram detection.

Keywords:
consolidationdiffusion-weighted MRIencodingengramfMRImemoryneocortexneuroplasticityposterior parietal cortex

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Area of Science:

  • Neuroscience
  • Cognitive Science

Background:

  • Traditional memory research relied on lesion studies.
  • New methods enable precise labeling, tracking, and manipulation of engram cells.
  • Emerging evidence points to brain-wide distributed engram networks.

Purpose of the Study:

  • Review recent advancements in engram research.
  • Focus on human data and neocortical representations.
  • Explore noninvasive methods for detecting engrams in the neocortex.

Main Methods:

  • Review of noninvasive magnetic resonance imaging (MRI)-based methods like diffusion-weighted MRI (DW-MRI).
  • Brain decoding techniques for memory research in humans.
  • Analysis of animal research on engram cell manipulation.

Main Results:

  • Evidence for brain-wide distributed engram networks is growing.
  • Noninvasive methods can detect engrams in neocortical regions (e.g., medial prefrontal cortex, posterior parietal cortex).
  • Discussion of systems consolidation and parallel memory encoding.

Conclusions:

  • Reactivation and prior knowledge enhance engram formation in the neocortex.
  • Human memory research is advancing rapidly with new technologies.
  • Understanding engram networks is key to comprehending memory representation.