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Persistent structural alteration of the extended limbic system in adolescents with childhood maltreatment
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DOI：10.1192/j.eurpsy.2025.10111.png)
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Abstract
En 中文
BackgroundChildhood maltreatment (CM) is related to structural alterations in adult limbic regions. However; the change in limbic structures remains unclear in adolescents from the general population since most reports stem from clinical samples. Additionally; large longitudinal neuroimaging studies in community adolescents reporting CM are scarce. Hence; we aimed to investigate the cross-sectional and longitudinal associations between CM and the structure and function of the extended limbic and reward systems throughout adolescence.MethodsWe analysed data of 634 community adolescents from the IMAGEN cohort at age 14; followed up at age 18. CM was inferred from the Childhood Trauma Questionnaire completed at age 18; yielding subgroups with CM (N = 105) or without CM (N = 529). Using 3-Tesla T1 MRI; we performed between-group voxel-wise analyses at ages 14 and 18 to investigate grey matter volumes (GMV). In addition; GMV were investigated longitudinally between ages 14 and 18. Finally; using functional MRI and the Monetary Incentive Delay task; we measured reward anticipation and feedback sensitivity between groups at ages 14 and 18.ResultsBoth at ages 14 and 18; adolescents reporting CM had lower GMV in the right insula; left orbitofrontal cortex; putamen; superior medial frontal gyrus; paracentral lobule; and other paralimbic regions; but no significant differences in reward response. Longitudinal analyses revealed no GMV difference between age groups.ConclusionCM was associated with GMV alterations persisting from early to late adolescence in the limbic regions in community individuals. Therefore; these findings further support the need for research on targeted preventive interventions for adolescents who have experienced CM.
Keywords:
adolescence
adversity
child abuse
longitudinal studies
magnetic resonance imaging
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