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Group brain activity maps for spontaneous pain and visual rating tasks in CP/CPPS. A, group average brain activity for spontaneous pain rating task and for visual rating task. B, contrast between pain and visual tasks shows areas that were more specifically active during spontaneous pain of CP/CPPS (red-yellow), and included right anterior insula and parietal regions. Regions with higher activity during visual task (visual – pain) are shown as negative activity (blue-green).
