Brain Connectivity in Poor Readers
The Journal Club28 Huhti 2025

Brain Connectivity in Poor Readers

This study shows that although both typical and poor readers can learn letter–speech-sound associations, poor readers adapt more slowly—exhibiting reduced drift rates, wider decision boundaries, and longer nondecision times in a reinforcement-learning drift-diffusion model. Neuroimaging revealed that poor readers also have altered effective connectivity across visual, auditory, and associative regions, with notably diminished striatal modulation of visual-to-audiovisual integration pathways, suggesting impaired information transfer critical for fluent reading.


Frei N, Willinger D, Haller P, Fraga-González G, Pamplona GSP, Haugg A, Lutz CG, Coraj S, Hefti E, Brem S. Toward a Mechanistic Understanding of Reading Difficulties: Deviant Audiovisual Learning Dynamics and Network Connectivity in Children with Poor Reading Skills. J Neurosci. 2025 Apr 23

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