Fig. 4.

Brain regions that were specifically activated by conflict effects in tinnitus patients.

The activation maps obtained using the contrast [TP incongruent > (TP congruent + CS congruent + CS incongruent)] are displayed according to the colour scale that codes for the activation level based on the t-values. The activation maps are superimposed on the sagittal, coronal and transverse sections of an individual normalized brain MRI. In the auditory modality (upper part of the figure), the right middle frontal gyrus (dlPFC, BA 46) (A) and the right medial frontal gyrus (vmPFC, BA 10) (B) were specifically activated in tinnitus patients while they processed incongruent stimuli, as compared to all other conditions. Brain activation foci also included the tail of the right caudate (C) and the right posterior cingulate gyrus (BA 30) (D). In the visual modality (lower part of the figure), the right middle frontal gyrus (BA 46) (A), the right medial frontal gyrus (BA 10) (B), the cingulate gyrus (BA 24) (C) and the right caudate (D) were specifically activated in tinnitus patients during interference conditions, as compared to all other conditions. R: right, L: left.