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Related Experiment Video

Updated: Mar 31, 2026

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Extensive learning is associated with gray matter changes in the right hippocampus.

Kathrin Koch1, Tim Jonas Reess1, Oana Georgiana Rus1

  • 1Department of Neuroradiology, Klinikum rechts der Isar, Technische Universität München, Ismaningerstrasse 22, 81675 Munich, Germany; TUM-Neuroimaging Center (TUM-NIC) of Klinikum rechts der Isar, Technische Universität München TUM, Ismaninger Strasse 22, 81675 Munich, Germany; Graduate School of Systemic Neurosciences GSN, Ludwig-Maximilians-Universität, Biocenter, Groβhaderner Strasse 2, 82152 Munich, Germany.

Neuroimage
|November 1, 2015
PubMed
Summary

Intensive learning significantly increased right hippocampal gray matter volume in medical students. This neuroimaging study highlights the hippocampus's neuroplasticity in response to cognitive challenges.

Keywords:
Gray matter volumeHippocampusNeuroplasticitySubiculum

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Area of Science:

  • Neuroscience
  • Neuroimaging
  • Cognitive Psychology

Background:

  • Longitudinal voxel-based morphometry studies show hippocampal gray matter increases after cognitive learning.
  • The subiculum plays a role in learning and memory processes.

Purpose of the Study:

  • To investigate the impact of intensive learning on hippocampal and subicular gray matter volume.
  • To compare changes in medical students undergoing learning with a control group.

Main Methods:

  • Longitudinal FreeSurfer analyses were used.
  • Hippocampus subfield segmentation was performed.
  • A 14-week intensive learning period was studied.

Main Results:

  • A significant increase in right hippocampal gray matter volume was observed in the learning group.
  • No significant changes were found in the left hippocampus or subiculum volume.
  • Control subjects showed no significant gray matter changes.

Conclusions:

  • Extensive learning enhances right hippocampal volume, demonstrating neuroplasticity.
  • The hippocampus is crucial for semantic learning and memory.
  • The subiculum's role in this specific learning context requires further investigation.