Table 2.

Volume studies of the IFOF in 10 individual subjects.

Volume(ml)	L	R
1(male)	63.88	42.08
2(female)	84.75	66.67
3(female)	103.68	49.04
4(male)	64.89	63.32
5(female)	70.13	69.69
6(female)	40.72	49.58
7(male)	43.02	51.25
8(female)	44.91	52.61
9(female)	58.64	51.11
10(female)	53.26	48.90

The IFOF relative volume in relation to the whole brain white matter volume was 18.5% (15.3–24.5%). No significant difference in the total volume of the IFOF between the left and right hemispheres (62.79 ± 19.77 ml vs. 54.43 ± 8.96 ml, P = 0.205). L, left hemisphere; R, right hemisphere.