Depth is encoded in the visual cortex by a specialized receptive field structure.
Clicking either of the following will start a download of the document. Please note the file size. The visual system uses these disparities to gauge depth. We studied neurons in the cat's visual cortex to determine whether the visual system uses the anisotropy in the range of horizontal and vertical disparities. For neurons tuned to vertical orientations, left and right receptive fields are predominantly dissimilar.