The results of the present study yielded several important findings. Regarding differences between groups: (1) the alcoholics showed reduced Go as well as NoGo N2 amplitudes compared to the normal controls, and this reduction was statistically significant at the frontal and central regions, (2) in the sLORETA analysis, although alcoholics showed lower current density at the source than control subjects on Go as well as NoGo tasks, this difference was statistically significant only for NoGo N2 in the bilateral anterior prefrontal cortices with a maximum difference in the left superior prefrontal region (BA 10).
