Figure 2. Relationship of global cognition to neocortical Pittsburgh compound B (PiB) binding (A) and relationship of Wechsler Adult Intelligence Scale (WAIS) score to neocortical PiB binding (B).

(A) r = −0.55; p = 0.0006. (B) r = −0.54; p = 0.0004. DVR = distribution volume ratio.