Figure 5. Direct searches in the ventral tegmental area.
The VTA mask for the ROI analyses (left) was drawn in the midbrain, medial to the substantia nigra and ventral to the red nucleus (right; adapted from the Duvernoy's atlas (24)) (A). In FM, VTA responses to anticipation of pain, pain and anticipation of relief were statistically reduced, compared to controls. Bars represent mean ± SEM (B). VTA responses to pain anticipation and relief anticipation were negatively correlated in healthy controls, but not in FM patients (C).
