Figure 8.

Extent of tactile‐ and pain‐evoked deactivations within ipsilateral S1 (thresholded method). (A) The mean (± SE) number of voxels (across all subjects) deactivated during tactile or painful stimulation is displayed for S1. A two‐way ANOVA identified a significant main effect of task such that painful stimulation elicited more deactivated voxels in the ipsilateral S1 than tactile stimulation (P < 0.001, t = 6.31). (B). The mean (± SE) number of voxels deactivated over all left or right brain regions is displayed. The 2‐way ANOVA indicated no significant main effect of stimulation side. (S1, primary somatosensory cortex).