Figure 2. Source-localized correlation analysis between the percentage improvements in the numeric rating scale (NRS) of tinnitus loudness and the pre-TRT resting-state qEEG data.

The activities of the right primary and secondary auditory cortices (BAs 41 and 21) (i.e., the delta and gamma frequency bands), and the activities of the parahippocampus (i.e., the delta, beta 2 and 3, and gamma frequency bands) increased with increasing THI scores.