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Fetal Frontolimbic Connectivity Prospectively Associates With Aggression in Toddlers

Cassandra L Hendrix1, Lanxin Ji1, Denise M Werchan1,2

  • 1Department of Child & Adolescent Psychiatry, NYU Langone Health, New York, New York.

Biological Psychiatry Global Open Science
|October 26, 2023
PubMed

Insights

Fetal brain connectivity, specifically weaker frontolimbic connections, may predict later aggression in children. This finding offers early insights into the neurobiological origins of aggressive behavior.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Public Health

Background:

  • Aggression is a significant public health issue with early developmental origins.
  • Current treatments for aggression are suboptimal, necessitating a deeper understanding of its causes.
  • Identifying early neurobiological markers could inform preventative strategies.

Purpose of the Study:

  • To investigate fetal brain functional connectivity as a predictor of later aggressive behavior.
  • To identify candidate neurocircuitry associated with the early onset of aggression.

Main Methods:

  • Utilized fetal resting-state functional magnetic resonance imaging (fMRI) in mothers during the third trimester.
  • Assessed child aggression at 3 years postpartum using the Child Behavior Checklist (n=79).
  • Employed independent component analysis to define frontal and limbic networks.

Main Results:

  • No association found between fetal within-network connectivity (frontal or limbic) and later aggression.
  • Weaker fetal functional coupling between the subcortical limbic and medial prefrontal networks predicted increased maternal-rated child aggression at age 3.
  • This association remained significant after controlling for maternal emotion dysregulation and toddler language ability.
  • Similar, though weaker, associations were observed between fetal frontolimbic connectivity and toddler internalizing symptoms.

Conclusions:

  • Neural correlates of aggressive behavior may be detectable prenatally, before symptom manifestation.
  • Fetal frontolimbic connections represent a potential candidate neurocircuitry for further investigation.
  • These findings may contribute to understanding child behavior development and psychiatric risk.
Abstract

Keywords:
AggressionDevelopmentEmotion regulationFetal brainFrontolimbicResting-state functional connectivity

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