Fig. 4.

Cytoarchitectural tractography. Features of the cerebellar intra-cortical connectivity are revealed by micro-tractography in a portion of cerebellar folium. White matter (WM) trajectories propagate and disperse inside the granular layer (III) of the folium. At this interface, short strands, reflecting probably the average orientation of granular cell axons, project to the molecular layer (I) and merge with almost orthogonal and longer strands that consistently describe the dominant orientation of the parallel fibres (II) inside this layer