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Preschoolers' genetic, physiological, and behavioral sensitivity factors moderate links between parenting stress and

Molly Davis1, Kristel Thomassin2, Joanie Bilms1

  • 1Department of Psychology, University of Georgia, Athens, Georgia.

Developmental Psychobiology
|March 16, 2017
PubMed

Insights

Parenting stress impacts preschoolers' adjustment. Genetic factors, like the serotonin transporter (5-HTTLPR) gene, and child temperament influence this relationship differently, guiding interventions.

Area of Science:

  • Developmental Psychology
  • Behavioral Genetics
  • Child Psychiatry

Background:

  • Parenting stress is linked to child adjustment problems.
  • Individual differences in children may moderate this link.
  • Understanding moderators informs targeted interventions.

Purpose of the Study:

  • To investigate moderators of the parenting stress-preschooler adjustment link.
  • To examine genetic (5-HTTLPR), physiological (RSA), and behavioral (negative emotionality) factors.
  • To differentiate between differential susceptibility and diathesis-stress models.

Main Methods:

  • 108 mothers reported on parenting stress and child negative emotionality, internalizing, externalizing, and sleep problems.
  • Children's baseline respiratory sinus arrhythmia (RSA) was measured.
  • Genetic polymorphism (5-HTTLPR) was assessed.

Main Results:

  • The 5-HTTLPR gene polymorphism supported a differential susceptibility model.
  • Physiological (RSA) and behavioral (negative emotionality) factors aligned with a diathesis-stress framework.
  • These moderators influence the impact of parenting stress on child adjustment.

Conclusions:

  • Different theoretical models explain the influence of various moderators.
  • Genetic factors suggest children with specific genotypes may be more susceptible.
  • Physiological and behavioral factors indicate stress-vulnerability interactions.
  • Findings inform prevention and intervention strategies for parenting stress.

Keywords:
5-HTTLPRchild adjustmentnegative emotionalityparenting stressrespiratory sinus arrhythmia

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