Figure 1.

Surface-based representations of the Visible Man cerebral cortex. (A) Native 3-D view of the right hemisphere, with lobes differently shaded. (B) Two coronal slices (6 mm thick), whose location in the other panels is shown in blue. (C) An extensively smoothed surface. (D) The same surface mapped onto an ellipsoid. (E) A cortical flat map, with selected cuts to reduce distortions. The gridwork surrounding the map defines a surface-based coordinate system, with a grid spacing of 1 map-cm, equivalent to 1 cm along the cortical surface in regions that are not distorted.