distribution of inter-trial synchrony. Significant main effect of Time Interval reflected an increase of PLI values in the post-stimulus intervals (T1 and T2) as compared to the reference or pre-stimulus interval (T0), also indicated by post-hoc t-test (p<0.0001). At both frequencies, PLI was higher in NoGo trials frontally, and in Go trials parietally. The strongest PLI differences between Go and NoGo trials were found at the delta frequency: PLI was higher in Go trials as compared with NoGo trials in the fist time interval after stimulus onset (0–300 ms), especially centro-parietal, whereas in the second time interval PLI was higher in NoGo trials, especially at frontal and central sites (p<0.01, Bonferroni-corrected).
