Attention and Regional Gray Matter Development in Very Preterm Children at Age 12 Years

Rachel E Lean1, Tracy R Melzer2, Samudragupta Bora3

  • 11Department of Psychiatry,Washington University School of Medicine,St. Louis,Missouri.

Insights

Children born very preterm (VPT) show poorer sustained and executive attention compared to full-term peers. This is linked to differences in brain gray matter development, particularly in areas like the parietal and temporal cortices.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Pediatrics

Background:

  • Very preterm (VPT) birth is associated with increased risk for neurodevelopmental challenges.
  • Attentional deficits are common in VPT children, impacting academic and social functioning.
  • Understanding the neural correlates of these deficits is crucial for targeted interventions.

Purpose of the Study:

  • To investigate the relationship between regional gray matter development and attention abilities in VPT children.
  • To compare attention performance and brain structure between VPT and full-term (FT) children at age 12 years.
  • To identify specific brain regions associated with attentional deficits in VPT individuals.

Main Methods:

  • A cohort of 110 VPT (≤32 weeks gestation) and 113 FT children were assessed at corrected age 12 years.
  • Attention was evaluated using the Test of Everyday Attention-Children.
  • Structural magnetic resonance imaging (MRI) and voxel-based morphometry were used to analyze regional gray matter differences.

Main Results:

  • VPT children demonstrated poorer sustained and executive attention compared to FT children.
  • VPT children exhibited reduced gray matter in parietal, temporal, prefrontal cortices, thalami, and hippocampus, with increased gray matter in occipital and anterior cingulate cortices.
  • Specific attention deficits were associated with gray matter alterations in the anterior cingulate, superior temporal, occipital, posterior cingulate, and temporal cortices.

Conclusions:

  • Regional gray matter development disturbances contribute to attentional impairments in VPT children.
  • These findings highlight the importance of monitoring neurodevelopmental trajectories in VPT populations.
  • Structural MRI findings provide insights into the neural basis of attention deficits in very preterm individuals.
Abstract

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