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Related Experiment Video

Updated: May 13, 2026

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
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Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping

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Structural Brain Alterations Following Speed-Reading Training in Sinhala-Speaking Adults: A Voxel-Based Morphometry

Niluka Dilhani1, Thishuli Walpola1, Ngoc Thanh Hoang2

  • 1Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10 Higashi-Ogu, Arakawa-ku, Tokyo, Japan.

Brain and Language
|May 11, 2026
PubMed
Summary

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Speed-reading training improved reading speed and was associated with structural brain changes in Sinhala readers. These neuroplastic effects occurred in grey and white matter regions crucial for reading, even in a non-alphabetic writing system.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neuroimaging

Background:

  • Neuroplasticity research has explored structural brain changes after reading training.
  • However, these effects are less understood in non-alphabetic writing systems.

Purpose of the Study:

  • To investigate structural brain changes in native Sinhala readers after speed-reading training.
  • To correlate these changes with improvements in reading speed.

Main Methods:

  • Employed Voxel-Based Morphometry (VBM) to assess grey matter changes.
  • Utilized diffusion MRI and Tract-Based Spatial Statistics (TBSS) to analyze white matter microstructural alterations (FA, MD, RD).
  • Correlated structural changes with reading speed improvements using statistical analysis with FDR correction.
Keywords:
Grey matterPlasticitySpeed-ReadingTBSSVBMWhite matter

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Main Results:

  • Significant improvements in reading speed were observed post-training.
  • VBM identified correlations between reading speed and grey matter in the left inferior frontal gyrus, superior frontal gyrus, middle occipital gyrus, cerebellum, and bilateral thalamus.
  • TBSS revealed positive correlations between reading speed and white matter tracts including the superior longitudinal fasciculus, inferior longitudinal fasciculus, and others.

Conclusions:

  • Speed-reading training is associated with structural variations in brain regions and white matter pathways involved in reading.
  • These findings extend the understanding of neuroplasticity to linguistically diverse populations and writing systems.