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Stable auditory processing underlies phonological awareness in typically developing preschoolers.

Silvia Bonacina1, Sebastian Otto-Meyer1, Jennifer Krizman1

  • 1Auditory Neuroscience Laboratory, Evanston, IL USA; Department of Communication Sciences, Evanston, IL USA; Northwestern University, Evanston, IL USA.

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Summary

Auditory neural stability in young children predicts early phonological awareness (PA). This crucial link between sound processing and language development disappears as children age.

Keywords:
DevelopmentFrequency following responseNeural stabilityPhonological awarenessPhonological memoryPhonological processingRapid automatized naming

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Speech and Hearing Sciences

Background:

  • Early language acquisition relies on sound processing.
  • Phonological processing comprises Phonological Awareness (PA), Phonological Memory (PM), and Rapid Automatized Naming (RAN).
  • PA is linked to auditory system function, suggesting a role for neural stability.

Purpose of the Study:

  • To investigate the relationship between auditory neural stability and components of phonological processing in young children.
  • To determine if this relationship is specific to certain phonological components (PA, PM, RAN).
  • To examine how this relationship changes with age.

Main Methods:

  • Longitudinal measurement of across-trial stability of the frequency-following response (FFR).
  • Assessment of PA, PM, and RAN in 27 children around age 3 and in subsequent years.
  • Analysis of the predictive relationship between FFR stability and phonological processing components.

Main Results:

  • Auditory neural stability at age ~3 years exclusively predicted Phonological Awareness (PA).
  • This association between neural stability and PA was not observed in older children.
  • Phonological Memory (PM) and Rapid Automatized Naming (RAN) were not significantly predicted by auditory neural stability at any age.

Conclusions:

  • Auditory neural stability is a critical precursor for developing Phonological Awareness in early childhood.
  • The foundational link between auditory processing and PA is age-dependent and diminishes over time.
  • These findings highlight the importance of early auditory experiences for foundational language skills.