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Cardiac vagal regulation in infancy predicts executive function and social competence in preschool: Indirect effects

Margaret Whedon1, Nicole B Perry2, Susan D Calkins1

  • 1Department of Human Development & Family Studies, University of North Carolina at Greensboro, Greensboro, North Carolina.

Developmental Psychobiology
|May 23, 2018
PubMed

Insights

Infant cardiac vagal regulation influences language development, which in turn supports executive function and social skills in preschool. Early biological functioning impacts later cognitive and social development through language pathways.

Area of Science:

  • Developmental Psychology
  • Neuroscience
  • Pediatrics

Background:

  • Parasympathetic nervous system activity in infancy is crucial for cognitive and socioemotional development.
  • Cardiac vagal regulation, measured by respiratory sinus arrhythmia (RSA), is a key indicator of parasympathetic functioning.

Purpose of the Study:

  • To investigate the indirect effects of infant cardiac vagal regulation on preschool executive functioning and social competence.
  • To examine the mediating role of toddler language development in the relationship between early vagal regulation and later child outcomes.

Main Methods:

  • Assessed vagal regulation in 297 infants at 10 months using RSA changes during social and nonsocial attention tasks.
  • Measured vocabulary size in toddlerhood and executive function and social competence in preschool.
  • Employed path analysis to examine indirect effects.

Main Results:

  • Infant RSA changes in response to social and nonsocial stimuli predicted toddler vocabulary size.
  • Larger toddler vocabulary was associated with enhanced executive function and social competence in preschool.
  • Significant indirect effects were found, linking infant vagal regulation to preschool outcomes via toddler language.

Conclusions:

  • Early cardiac vagal regulation influences cognitive and social development through language acquisition.
  • Language development in toddlerhood acts as a critical mechanism linking infant biological functioning to later childhood skills.
  • Findings highlight the importance of early-life autonomic nervous system function for long-term developmental trajectories.

Keywords:
RSAexecutive functioninfancylanguagesocial competencevagal regulation

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