Percept-related fMRI main effect group map for SHAM. Percept-related fMRI using on-line sensation rating yielded activation in sensorimotor processing regions (SII, angG, insula, SMG, precentG, pMCC) and deactivation in default mode regions (e.g. PCC, vmPFC, parahipp). Higher cognitive areas (e.g. dlPFC) were also modulated. PCC = posterior cingulate cortex; pMCC = posterior middle cingulate cortex; SMA = supplementary motor area; dlPFC, vmPFC = dorsolateral, ventromedial prefrontal cortex; precentG = precentral gyrus; angG = angular gyrus; SII = secondary somatosensory cortex; SMG = supramarginal gyrus.