FIGURE 4.

Relationship between brain structure/function residuals and global deficit score (GDS). There is a relationship between corpus callosum body (CCb) fractional anisotropy (FA) and GDS (left) and CCb functional connectivity strength and GDS (right). Note that functional connectivity strength is measured in group differentiating regions. Residuals are obtained by regressing functional connectivity/FA against age (mean centered), protocol, and relative mean displacement. The mean and SE for each group are indicated by the point in the middle of each violin plot. Lower FA and higher functional connectivity are associated with a higher incidence of GDS impairment