FIG 5. Word generation and FBL activation maps in one subject obtained 1 week apart (P < .0001 corrected for spatial extent at P < .05). Images displayed in Talairach space (right side of the image is the right of the subject).

Row 1 (from the top) Word-generation paradigm on day 1. Images demonstrate bilateral frontal, bilateral cerebellar, bilateral thalamic, bilateral occipital left parietal, and anterior cingulate regions.

Row 2, Word-generation paradigm performed 1 week later. Although the activations are highly reproducible, numerous areas of extraneous activation are also present.

Row 3, FBL paradigm on day 1. Images demonstrates activation of bilateral temporal and left frontal regions.

Row 4, FBL paradigm performed 1 week later. Although the reproducibility indices for this paradigm are lower, the degree of extraneous activation is also markedly reduced.