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Updated: May 6, 2026

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Developmental variation in amygdala volumes among children with posttraumatic stress
Carl F Weems1, Brandon G Scott, Justin D Russell
1a Department of Psychology , University of New Orleans , New Orleans , Louisiana.
Abstract:
This article examined associations between indices of maturation (age and Tanner stage) and amygdala volumes in 24 youth (aged 7-14) with posttraumatic stress disorder symptoms and a matched control group. Fifteen of the youth with exposure to trauma were also re-evaluated one year later. A positive association between maturation and right amygdala volumes was observed in the trauma group but not in controls. Associations with maturation remained when controlling for a number of possible covariates and over time. Developmentally younger youth (Tanner stage 1 and 2) showed increases and older (Tanner stage 3 and 4) decreases in right amygdala volumes.
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