Brain features significantly contributing to within-patient classification of lower- and higher-clinical pain intensity states. Paired-SVM classification weight maps for rCBF (A) and S1CONN (B) were thresholded (permutation analysis with N=5000, P<0.01) for visualization. N.b. rCBF: regional cerebral blood flow, S1CONN: S1-connectivity, SMA: supplementary motor area, vPCC: ventral posterior cingulate cortex, dlPFC: dorsolateral prefrontal cortex, S1: primary somatosensory cortex, M1: primary motor cortex, mPFC: medial prefrontal cortex, FIC: frontoinsular cortex, R: right hemisphere, L: left hemisphere.