Cortical recruitment patterns in children born prematurely compared with control subjects during a passive listening

Laura R Ment1, Bradley S Peterson, Betty Vohr

  • 1Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06520, USA. laura.ment@yale.edu

Insights

Children born prematurely utilize distinct brain networks for language processing, focusing on phonology rather than semantics. This alternative strategy supports similar phonological language scores compared to term-born peers.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Pediatrics

Background:

  • Premature birth can impact neurodevelopment, potentially altering cognitive processing systems.
  • Understanding alternative neural pathways for language development in preterm infants is crucial.

Purpose of the Study:

  • To investigate if individuals born prematurely develop alternative neural systems for language processing.
  • To compare language processing in preterm and term-born children using functional magnetic resonance imaging (fMRI).

Main Methods:

  • fMRI passive listening task involving phonological and semantic language processing.
  • Assessment of language skills using the Clinical Evaluation of Language Fundamentals (CELF) and Comprehensive Test of Phonological Processing (CTOPP).
  • Comparison between 14 preterm children (600-1250g birthweight, no brain injury) and 10 matched term-born controls.

Main Results:

  • fMRI revealed differential engagement of neural systems for language processing between groups.
  • Term-born children predominantly activated semantic processing regions.
  • Preterm children preferentially engaged phonological processing regions, despite similar CTOPP scores.

Conclusions:

  • At 12 years old, preterm and term-born children show distinct neural activation patterns for auditory language processing.
  • Preterm children's reliance on phonological processing networks is associated with comparable phonological language scores.
  • These adaptive neural strategies may underpin the observed improvements in language skills among children born prematurely.
Abstract

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