Figure 4.

Tinnitus-related cortical morphology and non-tinnitus factors. Scatterplots show the relationship between morphological features that best explain differences between tinnitus patients and controls in posterior vmPFC, rostral vmPFC, dmPFC, and SMG, and non-tinnitus factors. The mean value is plotted for each tinnitus patient (red) and control (gray) in each cluster, against mean hearing loss (left), noise sensitivity (middle), and combined depression and anxiety scores (right). Regression lines are plotted for each group, and insets display corresponding Pearson's r values for patients (red) and controls (black). Crosses (†) mark those plots for which ANCOVA analysis failed to find a difference between groups, and also indicated moderate correlation between morphological features and non-tinnitus factors. An outlier with dmPFC curvature >3 SD below the mean of tinnitus patients is encircled with a dashed line.