Figure 2.

Summed group images of fibre tracts passing through the right pedunculopontine nucleus region of interest in the coronal view (A) and the axial view (B). Data are displayed in MNI space on the 1 mm MNI template and are in radiologic convention. The colour bar describes the percentage of participants with overlap in the given region; warmer areas indicate regions of greater fibre tract overlap. FOG+ = patients with freezing of gait; FOG− = patients without freezing of gait; L = left; R = right.