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Neurodevelopmental Outcomes Associated with Prefrontal Cortical Deoxygenation in Children with Fetal Alcohol Spectrum

Julie A Kable1,2, Claire D Coles1,2, Sarah N Mattson3

  • 1Department of Psychiatry and Behavioral Science, Emory University School of Medicine, Atlanta, Georgia, USA.

Developmental Neuropsychology
|January 10, 2020
PubMed

Insights

Prenatal alcohol exposure (PAE) in children is linked to brain changes in the prefrontal cortex (PFC). These hemodynamic changes in the PFC correlate with executive functioning and behavioral issues.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Neuroimaging

Background:

  • Prenatal alcohol exposure (PAE) can lead to neurodevelopmental challenges.
  • Understanding the brain mechanisms underlying these challenges is crucial for effective interventions.

Purpose of the Study:

  • To investigate the relationship between prefrontal cortex (PFC) hemodynamic activity and neurodevelopmental functioning in children with PAE.
  • To compare these relationships in children with PAE versus those without PAE or with other neurodevelopmental impairments.

Main Methods:

  • Used functional near-infrared spectroscopy (fNIRS) to measure hemodynamic changes (deoxygenated hemoglobin - HBR) in the PFC.
  • Assessed neurodevelopmental functioning, including executive functions (cognitive inhibition) and externalizing problems.
  • Compared findings across groups: children with PAE, children with PAE and other impairments, and control groups.

Main Results:

  • Across all groups, lower HBR in the medial PFC was associated with fewer externalizing problems.
  • Higher HBR in the medial and right lateral PFC correlated with more errors in cognitive inhibition tasks.
  • Children with PAE showed stronger associations between PFC hemodynamic changes and executive functioning compared to control groups.

Conclusions:

  • Hemodynamic alterations in the PFC are associated with neurodevelopmental outcomes in children.
  • PAE appears to uniquely influence the relationship between PFC function and executive control, highlighting the impact of early exposure.

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