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Related Experiment Video

Updated: Feb 4, 2026

Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills

Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills

Published on: September 17, 2019

Longitudinal Task-Related Functional Connectivity Changes Predict Reading Development.

Gregory J Smith¹, James R Booth², Chris McNorgan¹

¹Department of Psychology, State University of New York at Buffalo, Buffalo, NY, United States.

Frontiers in Psychology

|October 5, 2018

Summary

This summary is machine-generated.

Brain network changes during reading development predict skill improvements in children. Greater network integration, shown by decreased transitivity, is linked to better reading abilities and alphabetic principle application.

Keywords:

functional connectivity functional magnetic resonance imaging (fMRI)graph theory longitudinal neural connectivity reading development reading network

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Area of Science:

Neuroscience
Developmental Psychology
Cognitive Science

Background:

Reading development involves significant changes in lexical processing.
These changes imply evolving functional connectivity within the brain's reading network.
Understanding these neural shifts is crucial for explaining reading skill acquisition.

Purpose of the Study:

To investigate developmental changes in functional brain connectivity during reading development.
To correlate these connectivity changes with improvements in reading skills, specifically pseudoword decoding.
To explore if graph-theoretic metrics of neural pathways can predict individual differences in reading development.

Main Methods:

Utilized functional magnetic resonance imaging (fMRI) in young readers (8-14 years) over an average 2.5-year period.
Employed a rhyming judgment task to assess brain activity and functional connectivity.
Applied graph-theoretic metrics to quantify network characteristics like transitivity.

Main Results:

Observed changes in functional segregation correlated with and predicted improvements in pseudoword decoding skills.
Identified a developmental shift in specialized functional clusters associated with reading skill changes.
Found that decreased transitivity, indicating greater network integration, is a key characteristic of developing reading networks.

Conclusions:

Reading development is dependent on specific neural pathway changes, particularly increased network integration.
Graph-theoretic properties of brain networks can predict individual differences in reading development.
This study provides evidence for a neurodevelopmental basis of reading skill acquisition.