In addition to the average PC computed for the three midline electrodes, we analyzed individual PC values computed for nine electrode pairs that are best representative of connections within the left (F3-C3, C3-P3, and F3-P3) and the right (F3-C3, C3-P3, and F3-P3) hemisphere, and between the two hemispheres (F3-F4, C3-C4, and P3-P4). In accordance with earlier analyses, PC for all these connections was determined for two frequency bands (delta and theta) and three time intervals (T0, T1, and T2), and was analyzed statistically using a three-way repeated measures ANOVA Electrode Pairs×Condition×Time Interval, 9×2×3 (see Methods). ANOVA results are presented in Table 3 and indicate significant main effects of all three factors and also significant interactions between these factors for both delta and theta frequency bands. A follow-up ANOVA with two levels of the factor Condition (Go vs. NoGo) revealed significant main effects of all three factors and also significant interactions between these factors for delta frequency, and significant main effects Electrode Pairs and Time Interval, as well as significant Electrode Pairs×Condition, Electrode Pairs×Time Interval, Condition×Time Interval, and Electrode Pairs×Condition×Time Interval
