Rangaswamy, 2007; Rangaswamy & Porjesz, 2008). Another COGA study indicated that AD polygenic scores were associated with increased fronto-central, temporo-parietal, centroparietal, and parietal-occipital interhemispheric theta and alpha connectivity in males (Meyers et al., 2019a). This research on EEGc could be useful in investigating a possible shared pathway of risk for AUD and PTSD.