ms, 50–350 ms and 350–800 ms time windows), theta (0–50 ms and 350–800 ms time windows) and alpha/beta (0–50 ms, 50–350 ms and 350–800 ms time windows) frequency bands in the frontal cortex (Table 3). Repeated measures ANOVA also showed a significant main effect of Tone in the delta and theta (50–350 ms and 350–800 ms time windows) bands and in the alpha/beta (0–50 ms and 350–800 ms time windows) band in the parietal cortex (Table 3). Post hoc pairwise comparisons showed lower ERO mean energy in the frontal and parietal delta band in response to noise tones (vs. standard and/or rare tones) during the 0–50 ms, 50–350 ms and 350–800 ms time windows (Table 3). Higher ERO energy in the frontal theta (0–50 ms time window) band and frontal and parietal alpha/beta (0–50 ms and 50–350 ms time windows) band was observed in response to noise tones (vs. standard and/or rare tones) (Table 3). In contrast, lower ERO energy in the frontal alpha/beta band (350–800 ms time window) and parietal theta and alpha/beta bands (50–350 ms and 350–800 ms time windows) was observed in response to noise tones, compared to standard and rare tones (Table 3).
