Figure 2.

Hypotheses and networks of interest (NOIs). (a) selected studies suggest that there are age‐related differences in regional structural covariance networks (SCNs), which the present study extended to inter‐network hypotheses. Current studies of structural covariance are restricted to either early (light gray) or later (dark gray) life examinations, and only one study that we are aware of (Chen et al., 2011) has examined inter‐network structural correlation patterns in any age group. (b) the current study examined 13 core SCNs (left and right of those displayed here, with the exception of the cerebellum) that are seen in development, young adulthood, and later life (see Section 2 for full description). See Table 2 for regions included in each network [Color figure can be viewed at http://wileyonlinelibrary.com]