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Exposure to Maternal Depression During Childhood and Adolescence and Problem Behavior in Early Adulthood: a Possible Mediating Role for Brain Structure

Year: 2014
Type: article
Study design: Observational Study
Abstract: The purpose of the present study was to advance our understanding of neurobiological processes related to the intergenerational transmission of behavior problems related to emotional dysregulation by examining whether earlier and/or more chronic exposure to maternal depression would be associated with increased depressive symptoms and reactive aggressive behaviors in young adult offspring, and whether individual differences in amygdala volume, hippocampal volume, and/or amygdala:hippocampus volume ratio would mediate this association. Results were mixed, indicating that maternal depression evident in early childhood or chronic maternal depression was positively associated with offspring depression and reactive aggression in early adulthood in some but not all cases. Maternal depression was not significantly associated with the volume of any individual brain regions in offspring, but was, in some analyses, significantly associated with larger amygdala:hippocampal volume ratios. Likewise, the volume of individual brain regions was not linked with concurrent young adult depression or reactive aggression, but amygdala:hippocampal volume ratio was linked to young adult reactive aggression. Results did not support a mediating role for any individual brain region in the associations found between maternal depression and offspring depression or reactive aggression, but did suggest a mediating role for offspring amygdala:hippocampal volume ratio in the association between maternal depression trajectory grouping and offspring reactive aggression in young adulthood. Findings support a role for relative amygdala and hippocampus size in the intergenerational transmission of problems related to emotion regulation.
Author: Mary Gilliam
Language: English
Field: Psychology
Open Access status: green
OpenAlex ID: W160651898
FWCI:
Cites: 141
Cited by: 1
Related to: 10