Figure 2.

The complete pattern of ocular dominance columns in the human brain. A, CO activity in layer 4Cβ montage of the left primary visual cortex after loss of the left eye in case 2. The CO pattern in V2 is a montage compiled from three sections passing through layer 4. The total area of the flat-mount is 10,117 mm². B, Ocular dominance columns rendered by high-pass Fourier filtering of the image in A, followed by application of a threshold function (see Materials and Methods). Columns are absent in the blind spot and monocular crescent regions. S, Superior; A, anterior; I, inferior; P, posterior.