Figure 1.

Anatomic images for studying S1. (a) Major landmarks (such as central and lateral sulci) used to identify S1 are visible on squirrel monkey brain. The red box indicates the location of ROIs. (b) A high‐resolution coronal image is collected to locate somatosensory cortices and to guide placement of an oblique slice parallel to S1 (locations indicated by rectangles, overlaid, or coronal scout image). This oblique orientation was used for both high‐resolution anatomical and functional imaging.(c) In an image acquired with T2* weighting, sulci and vascular structures appear dark. Both central and lateral sulci are readily identified in the most superficial slice. c, caudal; m, medial; r, rostral. [Color figure can be viewed at http://wileyonlinelibrary.com]