Figure 1.

We used a network approach to test the hypothesis that preserved memory in superaging is associated with preserved structure in the salience network and default mode network. We used masks of the salience network (blue) anchored in the dorsal anterior insula (Touroutoglou et al., 2012) and the default mode network (yellow; Andrews-Hanna et al., 2010) in our primary analyses of preserved brain structure in superaging. For the binarized salience network, z < 0.2, and for the default mode network, z < 0.2 (maps are shown on the “fsaverage” subject's inflated cortical surface). The general linear model analysis depicted in Figure 2 focuses only on cortex within these two networks.