White matter microstructure is associated with cognitive control in children.
Laura Chaddock-Heyman1, Kirk I Erickson, Michelle W Voss
1Department of Psychology & Beckman Institute, University of Illinois at Urbana-Champaign, 405 North Mathews Avenue, Urbana, IL 61801, USA. lchaddo2@illinois.edu
Biological Psychology
|May 30, 2013
Summary
Children’s cognitive control, crucial for learning, is linked to white matter integrity. Better white matter microstructure in specific brain regions correlated with improved attention and reduced interference in children.
Area of Science:
- Neuroscience
- Developmental Psychology
- Biomedical Imaging
Background:
- Cognitive control is vital for childhood learning and academic success.
- The specific white matter tracts supporting cognitive control in children are not fully understood.
- Understanding these neural underpinnings is crucial for identifying developmental trajectories and potential interventions.
Purpose of the Study:
- To investigate the relationship between white matter microstructure and cognitive control abilities in children aged 7-9 years.
- To identify specific white matter tracts associated with different aspects of cognitive control, including accuracy and interference suppression.
- To explore the role of a frontal-parietal-striatal-motor circuit in childhood cognitive control.
Main Methods:
- Utilized diffusion tensor imaging (DTI) to assess white matter microstructure in 61 children (aged 7-9).
- Measured microstructural properties including fractional anisotropy, mean diffusivity, axial diffusivity, and radial diffusivity.
- Administered a cognitive control task assessing accuracy and interference during incongruent and neutral trials.
Main Results:
- Higher white matter integrity in the corona radiata, superior longitudinal fasciculus, posterior thalamic radiation, and cerebral peduncle was associated with greater accuracy on cognitive control tasks.
- Reduced interference during the cognitive control task correlated with enhanced white matter microstructure in the posterior thalamic radiation and cerebral peduncle.
- Findings suggest a role for frontal-parietal-striatal-motor pathways in cognitive control during childhood.
Conclusions:
- White matter integrity in specific tracts, including the corona radiata and superior longitudinal fasciculus, is significantly related to cognitive control performance in children.
- The posterior thalamic radiation and cerebral peduncle appear particularly important for minimizing interference during cognitive tasks.
- These findings highlight the neural basis of cognitive control in childhood and suggest potential targets for future research.
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