As described earlier, because years of alcohol use was significantly correlated with age, we regressed SS>GS against age in non-drinkers to identify age-related changes. The left TPJ extending to MTG, bilateral MCC, right hippocampus, right insula, right dorsal lateral prefrontal cortex (DLPFC), left precuneus, and right pre-SMA and ACC decreased activation to older age (Figure 2c). An exclusive masking with these age-related activities showed that the activations in the right IFG extending to STG in drinkers were specific to years of alcohol use.
