Table 4.

ILF and IFOF: deterministic and probabilistic tractography with group masks; independent t-tests comparing DP and control groups.

Measure	Tract	t-valuea (dof=30)	p-value
Deterministic:	Right ILF	0.59	0.56
Fractional anisotropy
Right IFOF	−1.18	0.25
(Fig. 2c)
Left ILF	−1.44	0.16
Left IFOF	−0.90	0.38
Deterministic:	Right ILF	−0.34	0.82
Right IFOF	0.70	0.49
% Volume
Left ILF	0.23	0.82
Left IFOF	0.88	0.38
Probabilistic:	Right ILF	−0.74	0.47
Fractional anisotropy
Right IFOF	−0.61	0.54
(Fig. 2d)
Left ILF	−0.60	0.55
Left IFOF	−0.72	0.48
Probabilistic:	Right ILF	0.11	0.92
% Volume	Right IFOF	0.36	0.72
	Left ILF	−0.27	0.79
Left IFOF	1.11	0.27

^aPositive values indicate control>DP while negative values indicate DP>control