The term superior occipital gyrus refers to a small convolution on the dorsal margin of the human occipital lobe. Identified by dissection, it is separated from the middle occipital gyrus below by the intra-occipital sulcus and is continuous with the cuneus at the superior margin of the hemisphere. Its rostral border is defined by the parieto-occipital sulcus ( Duvernoy-1992 ). It has no topological equivalent in the macaque or in the smooth cerebral cortex of the rat or mouse ( NeuroNames ).