*3.3. Results of the EEG Data Analysis in the Source Space*

Setting the bandwidth of interest to 10 ± 2 Hz, we contrasted the source power (SP) between the four intervals. The statistical analysis revealed one cluster in the source space with *p* = 0.02 (corrected using the permutation statistics). This cluster included voxels in the right middle temporal gyrus (Temporal Mid R), right superior temporal gyrus (Temporal Sup R), right inferior temporal gyrus (Temporal Inf R), Rolandic operculum (Rolandic Oper R), fusiform gyrus (Fusiform R), and a part of the cerebellum (Cerebellum Crus1 R) (Figure 4A). The maximal *F*-value was achieved in the right middle temporal gyrus, while the minimum *F*-value belonged to the cerebellum. The averaged SP in this cluster grew from interval 1 (−0.22 ± 0.12 SD) to interval 4 (1.21 ± 0.49 SD) (Figure 4B).

**Figure 4.** Results of the EEG data analysis in the source space: (**A**) Source plot shows *F*-value, reflecting the significant change of the source power (SP) between four intervals on the prestimulus interval *t* ∈ [−1.5, 0] s, for *f* ∈ 8 − 12 Hz (*p* = 0.02 via *F*-test, permutation-based correction). Legends contain *p*-values, CTF coordinates of the voxel with maximal *F*-value, and names of anatomical zones according to Automated Anatomical Labeling (AAL); (**B**) Normalized source power, NSP (group mean ± 95% CI) in this cluster on four intervals.

## *3.4. Results of the Correlation Analysis*

Using repeated measures correlation analysis, we found that SP was negatively correlated with DT to LA stimuli (Figure 5A) and ER for HA stimuli (Figure 5D). At the same time, there was no correlation between SP and DT to HA stimuli (Figure 5B), or between SP and ER for LA stimuli (Figure 5C).

**Figure 5.** Results of the correlation analysis: Regression plots illustrate the relationship between SP and DT to LA stimuli (**A**); SP and DT to HA stimuli (**B**), SP and ER for LA stimuli (**C**); SP and ER for Ha stimuli (**D**). The colored dots correspond to each participant's data; the lines have the same slope estimated for these participants via correlation analysis with repeated measures.
