Tract-averaged voxel-wise FA compared between genders, combined sample, other regions of interest.

<p>*p<0.05;</p><p>**p<0.005. IQR: interquartile range; L = left; R = right; ILF = Inferior Longitudinal Fasciculus; FOF = Fronto-Occipital Fasciculus.</p

Tract-averaged voxel-wise FA compared between genders, original sample.

<p>*p<0.05;</p><p>**p<0.005. IQR: interquartile range.</p

Tract-averaged voxel-wise FA compared between genders, new sample.

<p>*p<0.05;</p><p>**p<0.005. IQR: interquartile range.</p

Demographics of the original and new samples.

<p>SD: standard deviation; C: Caucasian; AC: African-Caribbean; A: Asian; O: Other.</p

Areas of Gender Difference in Fractional Anisotropy.

<p>Red areas represent higher FA in women; Blue areas represent higher FA in men. Numbers Refer to the MNI Z-coordinate of the image below. The Left side of the brain is depicted on the Right side of the images.</p

Areas of FA difference.

<p>X, Y, Z-coordinates refer to the centre of mass of the cluster. SLF: superior longitudinal fasciculus.</p

Subject demographics.

<p>SD: standard deviation.</p