Second, we only studied the effect of a moderate alcohol dose, a dose that is relatively low in the context of the levels of alcohol intake typical for the population from which our sample was drawn. Whether higher doses of alcohol would yield similar results or might also affect early feedback processing as measured by the FRN component awaits further research. Future studies that include a range of alcohol doses to produce BACs at or above this level would provide an extension of the present results at more distinct subthreshold intoxication levels.
