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Updated: Nov 16, 2025

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Structural Brain Development and Aggression: A Longitudinal Study in Late Childhood.

Hannah Roberts1,2, Elena Pozzi3, Nandita Vijayakumar4

  • 1Department of Psychiatry and Addiction Center, University of Michigan, 4250 Plymouth Road, Ann Arbor, MI, 48109, USA. rohannah@med.umich.edu.

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Summary
This summary is machine-generated.

Childhood aggression is linked to brain development, particularly in females showing reduced right hippocampal growth. Aggressive behaviors may correlate with altered brain development, including prefrontal cortex control over the amygdala.

Keywords:
Childhood aggressionHippocampusSex differenceStructural covarianceStructural magnetic resonance imaging

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Child Psychiatry

Background:

  • Childhood aggression is a significant concern with potential long-term consequences.
  • Understanding the neurodevelopmental underpinnings of aggression is crucial for early intervention.

Purpose of the Study:

  • To investigate the relationship between aggression and structural brain development in children over a two-year period.
  • To examine how subcortical and cortical brain structures develop in association with aggressive behaviors.

Main Methods:

  • Longitudinal study of 110 children (aged 8 to 10 years).
  • Magnetic resonance imaging (MRI) to assess brain structure (volume, cortical thickness, coupling).
  • Parent-reported aggression using the Child Behavior Checklist.

Main Results:

  • Females with higher aggression showed reduced growth in the right hippocampus.
  • Aggression was associated with developmental coupling between the amygdala, hippocampus, and cortex.
  • Findings suggest potential alterations in prefrontal control of the amygdala in aggressive children.

Conclusions:

  • Aggressive behaviors in children may be associated with deviations in typical brain development.
  • Structural brain changes, particularly in the hippocampus and amygdala-cortical networks, are linked to aggression.
  • Further research is needed, as findings were not corrected for multiple comparisons.