FIG 2. A–F, Functional MR images comparing activation detected by reference function 1 (right-handed task) (A–C) and reference function 2 (left-handed task) (D–F). Activation is detected in the SMC, thalamus, putamen, and cerebellum; activation is contralateral to the fingers that were active in the SMC and the thalamus, bilateral in the putamen, and ipsilateral in the cerebellum. (Note that all images are conventional radiologic display format, with the subject's right side appearing on the viewer's left.)