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The hippocampus and amygdala have received much attention with regard to the deleterious effects of childhood maltreatment. However, it is not known if and when these effects emerge during adolescence and whether comorbid psychopathology is more likely to explain these effects. This study investigated whether childhood maltreatment was associated with hippocampal and amygdala development from early to midadolescence and whether the experience of psychopathology during this period mediated the relation.

One hundred seventeen (60 male) adolescents, recruited as part of a broader adolescent development study, participated in magnetic resonance imaging assessments during early and midadolescence (mean age at baseline 12.62 years, SD 0.44 years; mean follow-up period 3.78 years, SD 0.20 years), and completed self-report measurements of childhood maltreatment and …