Figure 5:

White Matter Volume Comparisons: Lateral and medial views of maps of the difference in white matter volume between the two species are shown in the first column accompanied by a vertical scale such that yellow to red colours indicate where white matter volume is greater in humans than chimpanzees (scaled values > 0) and light to dark blue colours (scaled values < 0) indicate white matter volume is relatively greater in chimpanzees. The second column shows those regions of the Desikan-Killany atlas (same colour coding and labelling as in Figure 3) where humans have significantly higher percentages of white matter volume and the third column shows regions where chimpanzees have comparatively more white matter volume.