The amplitude and latency of the frontal–central N2 were determined as the most negative peak between 250 and 465 ms following the stimulus presentation at electrode FCZ. Two repeated measures ANOVAs were conducted separately on amplitude and then on latency. Alcoholics generated similar amplitude and latency N2 potentials. Neither the diagnosis effect nor the effects of stimulus complexity or response congruency were significant for the amplitude or latency measures (p > 0.083) (N2 amplitude mean ± SE are found in Fig. 3, N2 waveforms are found in Fig. 4, and N2 latency mean ± SD are found in Table 4). Table 4N2 latencyGroupN2 latency (ms)HsHrHsLrLsHrLsLrControlMean315319316307SD39284434AlcoholicMean299309306292SD32554933
