Cited by 243Reading and Literacy DevelopmentDevelopmental and Educational NeuropsychologyLanguage Development and Disorders

Instructional treatment associated with changes in brain activation in children with dyslexia

Aylward, E.H., Richards, T.L., Berninger, V.W., Nagy, W.E., Field, K.M., Grimme, A.C., Richards, A.L., Thomson, J.B. +1 more·2003·Neurology

Abstract

OBJECTIVE: To assess the effects of reading instruction on fMRI brain activation in children with dyslexia. BACKGROUND: fMRI differences between dyslexic and control subjects have most often involved phonologic processing tasks. However, a growing body of research documents the role of morphologic awareness in reading and reading disability. METHODS: The authors developed tasks to probe brain activation during phoneme mapping (assigning sounds to letters) and morpheme mapping (understanding the relationship of suffixed words to their roots). Ten children with dyslexia and 11 normal readers performed these tasks during fMRI scanning. Children with dyslexia then completed 28 hours of comprehensive reading instruction. Scans were repeated on both dyslexic and control subjects using the same tasks. RESULTS: Before treatment, children with dyslexia showed less activation than controls in left middle and inferior frontal gyri, right superior frontal gyrus, left middle and inferior temporal gyri, and bilateral superior parietal regions for phoneme mapping. Activation was significantly reduced for children with dyslexia on the initial morpheme mapping scan in left middle frontal gyrus, right superior parietal, and fusiform/occipital region. Treatment was associated with improved reading scores and increased brain activation during both tasks, such that quantity and pattern of activation for children with dyslexia after treatment closely resembled that of controls. The elimination of group differences at follow-up was due to both increased activation for the children with dyslexia and decreased activation for controls, presumably reflecting practice effects. CONCLUSION: These results suggest that behavioral gains from comprehensive reading instruction are associated with changes in brain function during performance of language tasks. Furthermore, these brain changes are specific to different language processes and closely resemble patterns of neural processing characteristic of normal readers.

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Crossref · 10.1212/01.wnl.0000068363.05974.64

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Authors
Aylward, E. H., Richards, T. L., Berninger, V. W., Nagy, W. E., Field, K. M., Grimme, A. C., Richards, A. L., Thomson, J. B., & Cramer, S. C.
Affiliations
Seattle Pacific University (US)
Venue
Neurology
Published
2003-07-22
Volume
61
Issue
2
Pages
212-219
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W1978455957
Cited by
242
References
49
Citations by year
2026: 4 · 2025: 2 · 2024: 6 · 2023: 8 · 2022: 6 · 2021: 6 · 2020: 4 · 2019: 5 · 2018: 12 · 2017: 4 · 2016: 9 · 2015: 13 · 2014: 16 · 2013: 12 · 2012: 11
FWCI
24.35
Type
journal article
Language
en
Open access
closed
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD33812, P50HD033812)
Topics
  • Social Sciences › Psychology › Developmental and Educational Psychology › Reading and Literacy Development
  • Social Sciences › Psychology › Neuropsychology and Physiological Psychology › Developmental and Educational Neuropsychology
  • Social Sciences › Psychology › Developmental and Educational Psychology › Language Development and Disorders
Keywords
dyslexia, reading instruction, brain activation, morphological awareness, phoneme mapping, phonological processing, reading disorders, children, neuroplasticity, language processing
MeSH terms
Adolescent, Articulation Disorders, Brain Mapping, Child, Dyslexia, Education, Female, Humans, Language Tests, Learning, Magnetic Resonance Imaging, Male, Pattern Recognition, Visual, Reading, Semantics

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