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Related Experiment Video

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A Method for Investigating Age-related Differences in the Functional Connectivity of Cognitive Control Networks Associated with Dimensional Change Card Sort Performance
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Functional connectivity in the developing language network in 4-year-old children predicts future reading ability.

Kaja K Jasińska1,2, Lan Shuai2, Airey N L Lau2,3

  • 1Applied Psychology and Human Development, University of Toronto, Toronto, ON, Canada.

Developmental Science
|October 8, 2020
PubMed
Summary

Early language skills and brain connectivity in pre-literate children predict future reading ability. Specifically, neural activation and functional connectivity in the left inferior frontal gyrus (IFG) and right superior temporal gyrus (STG) are key indicators.

Keywords:
fNIRSlanguageneuroimagingpsychophysiological interactionreading development

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Area of Science:

  • Developmental neuroscience
  • Cognitive psychology
  • Speech and language pathology

Background:

  • Pre-literate children possess advanced spoken language skills.
  • Developing language networks in young children overlap with emergent literacy networks.
  • Early identification of at-risk children for reading difficulties is crucial.

Purpose of the Study:

  • To investigate the relationship between pre-literate children's language abilities, neural function, and later reading skills.
  • To determine if neural activation and connectivity predict future reading ability.
  • To examine longitudinal changes in language and neural networks.

Main Methods:

  • Longitudinal study design with two time points (mean ages 4.2 and 5.2 years).
  • Functional near-infrared spectroscopy (fNIRS) to measure neural activation during speech processing.
  • Standardized assessments of language, cognition, and reading abilities.
  • Psychophysiological interaction (PPI) analyses to assess functional connectivity.

Main Results:

  • Significant task-modulated connectivity was observed between the left inferior frontal gyrus (IFG) and right superior temporal gyrus (STG) during word listening.
  • Neural activation in the left IFG and STG predicted later reading outcomes.
  • Increased task-modulated connectivity between left IFG and right STG was associated with enhanced reading ability one year later.

Conclusions:

  • Neural activation and connectivity within language networks in pre-literate children are predictive of reading ability.
  • The findings highlight the importance of early language network development for literacy acquisition.
  • This research provides a foundation for early identification and intervention for children at risk of reading problems.