Fig. 6.

Correlation between the different microstructural metrics. Grey boxes indicates non-significant correlation. One asterisk indicates p < 0.05 while two asterisks indicate p < 0.001. The correlations are calculated on 42 ROIs obtained from the intersection of the FA-derived skeleton from the tract-based spatial statistics pipeline. Each dot is colour-coded according to the number of predominant orientations in the ROI: red indicates a single fibre orientation; blue indicates more than one predominant orientations.