Figure 2.
Fractional anisotropy (FA) and mean diffusivity (MD) in areas of significant FA difference between adolescent marijuana+alcohol users (n=36) and controls (n=36). Relative to controls, users showed significantly lower FA in 10 regions and higher FA in 3 regions; within these 13 regions, MD did not differ between groups.
*P<0.01
**P<0.001
SLF=Superior longitudinal fasciculus