As hypothesized, we found different patterns of EEGc over time related to childhood trauma exposure before age 13. Results demonstrating differences in both intercept and slope of EEGc are associated with childhood assaultive trauma and psychopathology extend the largely cross-sectional, adult-focused literature (Cardenas, Price, & Fein, 2018; Cook et al., 2009; Park et al., 2017; Tcheslavski & Gonen, 2012). Our models indicated higher baseline left frontocentral EEGc in females with CSAT, consistent with a small (n = 30) cross-sectional study by Ito, Teicher, Glod, and Ackerman (1998), which observed higher alpha EEGc in the left hemisphere of children with severe sexual or physical abuse histories. The present study extends this literature by demonstrating nuanced trajectories: decreased alpha EEGc growth in females with CSAT and increased growth in males with CPAT. One explanation for these findings is that childhood trauma may lead to extended hyperarousal and mesolimbic system overactivation, disrupting typical neural network development (Teicher et al., 1997; Teicher & Samson, 2016). Notably, no associations between CNAT and EEGc were observed, consistent with literature indicating assaultive trauma poses higher risk for