Figure 1.

Unadjusted mean PiB DVR images from four axial slices demonstrate that shorter self-reported sleep duration is associated with greater β-amyloid burden. Participants reporting >7 hours sleep (n = 19) have the least amyloid burden, those reporting ≤6 hours sleep duration (n = 17) have the most, and those reporting >6 to ≤7 hours (n = 26) have an intermediate level of burden. Rightmost column contains structural images from the Montreal Neurological Institute space template.^{42, 43}