Figure 2

(A) ROIs selection. We selected three regions of interest (ROIs) (LH: left hemisphere; RH: right hemisphere): left somatomotor area (orange) obtained from the finger tapping localizer task and resulting in an ROI (~ 5000 μL) encompassing the precentral and postcentral gyri; right somatomotor area (yellow), obtained by left/right flipping the ROI mentioned above; bilateral early visual cortex (V1, V2, V3) (in red) selected using a functional atlas of the visual cortex, as a further early sensory control region; (B) Task-rest multivoxel similarity analysis. For each subject and ROI, we extracted the patterns of task-evoked activity of the four stimulus categories (hand, robot, glove, food). Four averaged task-evoked vectors were computed, one for each category. A vector of the same length was computed for each resting state frame. Then, we correlated the z-scored multivoxel activity of task conditions with the patterns of all resting state timepoints. For each category group, we computed a cumulative distribution function that represents the strength of the correlation between the average multivoxel category representation and the patterns from every time point of the resting-state signal. Finally, we identified the upper 90% value of the distribution (U90 value) to measure task-rest similarity. The data presented here are simulated for illustrative purposes.