FIG 3. A and B, Functional MR images showing subcortical activation for the same subject as in figure 2 detected by reference function 3 (right-handed initiation) (A) and reference function 4 (left-handed initiation) (B). Activation is detected in the putamen, thalamus, and transverse temporal gyrus. As compared with reference functions 1 and 2 (see fig 2B and E), more activation is detected in the putamen