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Acute Mouse Brain Slicing to Investigate Spontaneous Hippocampal Network Activity
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Hippocampal Remapping and Its Entorhinal Origin.

Patrick Latuske1, Olga Kornienko1, Laura Kohler1

  • 1Department of Clinical Neurobiology, German Cancer Research Center (DKFZ), Medical Faculty of Heidelberg University, Heidelberg University, Heidelberg, Germany.

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Hippocampal cell ensembles predict an animal's location and can remap to new environments. This review explores different types of hippocampal remapping and their triggers.

Keywords:
entorhinal cortexgrid cellhippocampusmemorynavigationplace cellsremapping

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Spatial Navigation

Background:

  • Hippocampal cell ensembles are crucial for spatial representation.
  • Environmental changes induce remapping, altering neural representations.
  • Understanding remapping is key to understanding spatial memory.

Purpose of the Study:

  • To review distinct types of hippocampal remapping.
  • To discuss temporal dynamics of map divergence and transitions.
  • To explore the role of the entorhinal cortex in triggering remapping.

Main Methods:

  • Review of existing literature on hippocampal remapping.
  • Analysis of studies on cell ensemble activity.
  • Examination of research on entorhinal cortex influence.

Main Results:

  • Evidence for diverse forms of hippocampal remapping is presented.
  • Progressive divergence of cell ensembles over time is observed.
  • Entorhinal cortex neurons are identified as potential triggers for remapping.

Conclusions:

  • Hippocampal remapping is a multifaceted phenomenon.
  • Temporal dynamics play a significant role in spatial map transitions.
  • The entorhinal cortex is implicated in initiating hippocampal remapping.