Fig. 1.

(Top) A lesion frequency image for the 257 patients in our sample. (Middle) An illustration of the union of regions that we consider in the region-based analyses. Both the voxel-based and region-based maps are thresholded to include only those voxels/regions where at least 26 patients (10% of the sample) had damage. (Bottom) Histograms of the patients' scores in the (left) hand and (right) finger imitation tasks. Red lines in each histogram indicate the threshold below which patients were considered ‘impaired’ on that task.