Skip to main content
. 2016 May 4;37(9):3310–3322. doi: 10.1002/hbm.23242

Figure 1.

Figure 1

Structural equation model used in order to decompose memory (MEM) and general executive functioning (GENEXEC) factors into independent variables of demographic characteristics influence (DEM), brain reserve capacity measures (BR) and cognitive reserve (CR). DEM was mainly accounted for school years (r = 0.92) but also by sex (r = 0.24). Sex and school years were also correlated (r = 0.22). Intracranial Volume (ICV) correlated strongly (r = 0.86) with gray matter volume (GMV). As expected, the latent gray matter component (GMC) was significantly modeled by GMV (r = 0.46) and the latent white matter component (WMC) was almost entirely (r = 0.97) modeled by the volume of white matter signal abnormalities (WMSA). GMC positively accounted for BR (r = 0.67) and WMC negatively accounted for BR (r = −0.74) due to the inverse relationship between white matter lesioning and BR. CR was the greatest predictor of GENEXEC (r = 0.67), followed by DEM (r = 0.62) and then BR (r = 0.33). MEM was mostly predicted by CR (r = 0.88), then by DEM (r = 0.37) and BR (r = 0.27).