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Linking preschoolers' parasympathetic activity to maternal early adversity and child behavior: An intergenerational

Erin B Glackin1, Virginia Hatch1, Stacy S Drury2,3

  • 1Department of Psychology, Tulane University, New Orleans, LA, USA.

Developmental Psychobiology
|July 15, 2020
PubMed

Insights

Maternal early adversity, measured by adverse childhood experiences (ACEs), is linked to lower offspring respiratory sinus arrhythmia (RSA) in early childhood. This biological marker of self-regulation persists across generations, independent of other factors.

Area of Science:

  • Psychology
  • Neuroscience
  • Developmental Biology

Background:

  • Maternal early adversity impacts offspring self-regulation.
  • Adverse Childhood Experiences (ACEs) in mothers are associated with infant respiratory sinus arrhythmia (RSA), a key biomarker for self-regulation.
  • Understanding intergenerational effects on self-regulation is crucial for early intervention.

Purpose of the Study:

  • To examine the association between maternal ACEs and offspring RSA in early childhood.
  • To investigate potential mediating pathways, including child violence exposure and maternal psychopathology.
  • To determine if RSA reactivity during dyadic interaction is linked to child behavior.

Main Methods:

  • Study included 123 low-income mother-child dyads, with children aged 3-5 years.
  • RSA was measured during dyadic interaction using latent growth curve modeling (LGCM).
  • Maternal ACEs, child violence exposure, and maternal psychopathology were assessed.

Main Results:

  • Higher maternal ACEs were associated with lower child RSA at the start of the task.
  • RSA withdrawal during interaction correlated with increased child negative affect.
  • The association between maternal ACEs and lower offspring RSA persisted, unaffected by maternal psychopathology or child violence exposure.

Conclusions:

  • Maternal early adversity has lasting biological effects on offspring self-regulation into early childhood.
  • RSA serves as a relevant biomarker for child behavioral regulation and intergenerational effects.
  • Findings underscore the biological embedding of early adversity across generations.

Keywords:
adverse childhood experiencesintergenerationalrespiratory sinus arrhythmiatrauma

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