Table 3.

Linear regression predicting delay of gratification skills at T2 using delay of gratification skills (AUC normalized), age, FA, and MD at T1

	B	SE	β	p
Constant	−0.996	0.772		0.199
T1 AUC (normalized)	0.463	0.059	0.504	0.000
T1 Age	0.003	0.005	0.048	0.473
T1 FA of the FS-tract	1.970	0.922	0.158	0.034
T1 MD of the FS-tract	726.143	766.871	0.064	0.345

FA of the frontostriatal (FS) tract explains 8.8% of the variance in delay discounting performance at T2 without correcting for discounting performance at T1. The proportion of explained variance by FA of the FS-tract at T1 in delay discounting performance at T2, on top of delay discounting behavior at T1, is 2%.