FIG. 2.

(A) Scatterplot of cannabis use (grams) by left ILF FA values (R²=0.026) with linear fit line. (B) Scatterplot of cannabis use (grams) by left ILF FA values (R²=0.083) with quadratic fit line. Both fit lines are presented to aid in interpretation, as the higher R² value in the quadratic fit suggests there may be a nonlinear relationship between cannabis use and left ILF FA value. As the primary analyses used linear multiple regressions, it would be beneficial to assess nonlinear relationships in a future study. Note: Data were assessed for outliers, with no outliers revealed. ILF, inferior longitudinal fasciculus.