Fig. 4.

Cytochrome oxidase (CO) stained transverse section of the brainstem showing the CN (solid border) and the postinjury dorsal hand representation (areas indicated by * betweendotted lines). The postinjury dorsal hand representation occupies pars rotunda locations containing CO dense patches that are normally associated with glabrous hand inputs (Xu and Wall, 1999).Arrows indicate marker lesions at the bottoms of some of the penetrations made in this transverse plane. Dorsal =up; medial = right.