GSTM1 and Tinnitus: In stark contrast to normal subjects, oxy-Hb activation in tinnitus subjects (middle plot in Figure 9C) showed a prominent peak in the right temporo-parietal cortex corresponding to BA39, 40 and possibly the ventral end of BA7 evoked by both reference and test stimulus frequencies in the T-group, but certainly not in the TH-group (Figure 9C, see also Supplementary Figure 12).