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G × E interaction and neurodevelopment I. Focus on maltreatment.

M Bellani1, M Nobile, V Bianchi

  • 1Department of Public Health and Community Medicine, University of Verona, Verona, Italy. marcella.bellani@univr.it

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Summary

This review examines genotype by environment interaction (G × E) in developmental psychopathology, focusing on child maltreatment effects. It analyzes exposure methods and findings in youth closer to their experiences.

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Area of Science:

  • Developmental psychopathology
  • Behavioral genetics
  • Child and adolescent mental health

Background:

  • Genotype by environment interaction (G × E) is crucial for understanding developmental psychopathology.
  • Child maltreatment is a significant environmental risk factor with complex outcomes.
  • Previous research has explored G × E, but a focused review on maltreatment is needed.

Purpose of the Study:

  • To review evidence for genotype by environment interaction (G × E) in developmental psychopathology.
  • To specifically examine studies on child maltreatment and its effects on youth.
  • To analyze the methods and findings of exposure assessments in G × E research.

Main Methods:

  • Systematic literature review of studies investigating G × E in developmental psychopathology.
  • Focus on studies assessing child maltreatment as an environmental exposure.
  • Analysis of methodologies used to assess exposure and genetic factors.

Main Results:

  • Evidence suggests G × E influences the impact of child maltreatment on psychopathology.
  • Variations in exposure assessment methods yield different findings.
  • The timing of maltreatment experience relative to assessment is a key factor.

Conclusions:

  • G × E is a critical framework for understanding individual differences in response to child maltreatment.
  • Methodological rigor in assessing environmental exposures is essential for advancing G × E research.
  • Future research should continue to explore the nuanced interplay of genes and environment in psychopathology.