Boxplots showing the distribution of diffusion tensor MRI indices for the global WM ROI in control (CON), non-amnestic MCI (MCIna) and amnestic MCI (MCIa).

<p>The boxplots represent the interquartile ranges, which contain 50% of individual subjects' values. The whiskers are lines that extend from the box to the highest and lowest values. A line across the box indicates the median values. * p<0.05 on post-hoc Tukey test.