Similarity in number of neurons through the depth of the cortex in the binocular and monocular parts of area 17 of the monkey.

In frozen sections of the occipital lobes of a brain of Macaca fascicularis after injection of [3H]proline and [3H]fucose into one eye it was possible to distinguish the monocular segment from the binocular region of area 17. The number of nerve cells in a narrow 30 micron wide strip through the depth of cortex has been found to be the same in the monocular and binocular regions, and the number is more than twice that in the cortex of the adjoining area 18.