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A longitudinal functional magnetic resonance imaging study of language development in children 5 to 11 years old.

Jerzy P Szaflarski1, Vincent J Schmithorst, Mekibib Altaye

  • 1Department of Neurology, University of Cincinnati Medical Center, OH, USA.

Annals of Neurology
|February 25, 2006
PubMed
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This 5-year study tracked brain activity during language development in children. It revealed dynamic changes in neural participation, highlighting increased neuroplasticity in school-aged children.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Cognitive Science

Background:

  • Language skills develop rapidly in school-aged children.
  • Current neuroimaging offers a static view of developing neural substrates of language.
  • Longitudinal studies are needed to capture dynamic brain changes during development.

Purpose of the Study:

  • To investigate the longitudinal changes in neural substrates of language.
  • To examine brain development related to language skills over 5 years in healthy children.
  • To utilize functional magnetic resonance imaging (fMRI) for a dynamic view of language processing.

Main Methods:

  • A 5-year longitudinal study involving 30 healthy children aged 5-7 years.
  • Annual fMRI scans using a 3-Tesla scanner during a verb generation task.

Related Experiment Videos

  • Data analyzed with a modified general linear model to track developmental changes.

    • Main Results:

    • Progressive recruitment of left hemisphere regions (inferior/middle frontal, middle temporal, angular gyri) and right hemisphere regions (lingual, inferior temporal gyri) with age.
    • Decreased participation in language processing by specific brain areas including the left posterior insula/extrastriate cortex and left thalamus.
    • Observed age-related shifts in neural network participation during language tasks.

    Conclusions:

    • The findings provide evidence for significant neuroplasticity in language processing in school-aged children.
    • These age-related neural changes offer insights into normal language development.
    • The study has implications for understanding and investigating aberrant language development.