TY  - JOUR
PY  - 2024//
TI  - Cortical volume alterations in the limbic network in adolescents with high reactive aggression
JO  - Development and psychopathology
A1  - Bashford-Largo, Johannah
A1  - Blair, R. James R.
A1  - Blair, Karina S.
A1  - Dobbertin, Matthew
A1  - Elowsky, Jaimie
A1  - Dominguez, Ahria
A1  - Hatch, Melissa
A1  - Bajaj, Sahil
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - Previous studies show aggression-related structural alterations in frontal and limbic brain regions. Most studies have focused on overall aggression, instead of its subtypes, and on specific regions instead of networks. This study aims to identify both brain networks and regions that are associated with reactive and proactive subtypes of aggression. Structural MRI data were collected from 340 adolescents (125 F/215 M) with a mean age of 16.29 (SD = 1.20). Aggression symptomology was indexed via the Reactive Proactive Aggression Questionnaire (RPQ). Freesurfer was used to estimate Cortical Volume (CV) from seven networks and regions within specific networks associated with aggression. Two multivariate analyses of covariance (MANCOVAs) were conducted on groups for low versus higher reactive and proactive RPQ scores. Our reactive aggression MANCOVA showed a main effect in CV [F(14,321) = 1.935, p = 0.022,ηp(2) = 0.078] across all the 7-Networks. Unpacking this main effect revealed significant volumetric differences in the right Limbic Network (LN) (p = 0.029) and the Temporal Pole (p = 0.011), where adolescents in the higher reactive aggression group showed higher cortical volumes. Such findings are consistent with region/voxel-specific analyses that have associated atypical structure within the LN and reactive aggression. Moreover, the temporal pole is highly interconnected with regions important in the regulation and initiation of reactive aggression.<p />  <p>Language: en</p>
LA  - en
SN  - 0954-5794
UR  - http://dx.doi.org/10.1017/S0954579424000750
ID  - ref1
ER  -