1997a, Klimesch, Doppelmayr, 1997b, Klimesch, Schimke, 1994), it is plausible to conclude that NoGo evoked fast alpha activity may reflect the semantic memory processes and/or stimulus related aspects of cognitive inhibitory processing during the suppression of a motor response and present findings indicate towards its deficiency in alcoholics. Further, NoGo evoked slow alpha activity may reflect modulation to attentional demands during the suppression of a motor response and its deficiency in alcoholics compared to controls at central regions appears to reflect the involvement of brain regions that are thought to be associated with modulation of attentional demands during the suppression of a motor response. It is to be noted that although evidence of task condition based modulation of attention was observed in alcoholics, the involvement of these brain regions was still significantly lower compared to controls.
