title: Developmental variation in amygdala volumes among children with posttraumatic stress.
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.
authors.affiliation: a Department of Psychology , University of New Orleans , New Orleans , Louisiana.
authors.forename: Carl F
authors.initials: CF
authors.lastname: Weems
authors.forename: Brandon G
authors.initials: BG
authors.lastname: Scott
authors.forename: Justin D
authors.initials: JD
authors.lastname: Russell
authors.forename: Allan L
authors.initials: AL
authors.lastname: Reiss
authors.forename: Victor G
authors.initials: VG
authors.lastname: Carrión
mesh_terms: D000293:Adolescent; D000679:Amygdala / Q000473:pathology*; D016022:Case-Control Studies; D002648:Child; D002657:Child Development / Q000502:physiology*; D005260:Female; D005500:Follow-Up Studies; D007839:Functional Laterality; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009483:Neuropsychological Tests; D009929:Organ Size; D012959:Socioeconomic Factors; D013313:Stress Disorders, Post-Traumatic / Q000209:etiology / Q000473:pathology*