due to abstinence. Furthermore, it is also possible that TOLT scores might be more relevant in the RF model involving FC features of other networks during resting state (e.g., executive control, attentional, etc.) or task performance (e.g., response inhibition, reward processing, etc.) rather than the DMN as used in the current study. Future FC studies during resting state as well as task performance using various domains of neuropsychological features may resolve this puzzle.