To compute power values that are time-locked to an event condition, resultant power values in different frequency bands for each trial were then averaged to derive evoked power values. The resultant evoked power values (in μV2) were extracted for delta (1.0-3.5 Hz; 200-600 ms), theta (4.0-7.5; 200-400 ms), slow alpha (8.0-9.5 Hz; 200-300 ms), and fast alpha (10.0-12.5 Hz; 100-200 ms) bands for each participant across electrode locations. Power values from 36 region-representative channels (Fig. 2; highlighted channels) were subsequently subjected to statistical analyses. The grand averages of S-transform analyses were computed for the control and alcoholic groups separately for the purpose of illustrating TFR profiles of different frequency bands and their group and condition differences. The TFRs were computed, z-scored, and plotted (1.0-12.5 Hz frequency bands) for the Fz, FCz, Pz, and Oz electrodes for both groups and task conditions (2nd and 3rd columns of Figs. 3b, 4b, 5b, 6b). For the purpose of illustrating group and condition differences in relative localization of the power density of these frequency bands, scalp surface Laplacian measures were computed and plotted for
