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Anatomy and physiology of a color system in the primate visual cortex (1984)
| Venue: | Journal of Neuroscience |
| Citations: | 169 - 3 self |
BibTeX
@ARTICLE{Livingstone84anatomyand,
author = {Margaret S. Livingstone and David and H. Hubel},
title = {Anatomy and physiology of a color system in the primate visual cortex},
journal = {Journal of Neuroscience},
year = {1984},
pages = {309--356}
}
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Abstract
Staining for the mitochondrial enzyme cytochrome oxidase reveals an array of dense regions (blobs) in the primate primary visual cortex. They are most obvious in the upper layers, 2 and 3, but can also be seen in layers 4B, 5, and 6, in register with the blobs in layers 2 and 3. We compared cells inside and outside blobs in macaque and squirrel monkeys, looking at their physiological responses and anatomical connections. Cells within blobs did not show orientation selectivity, whereas cells between blobs were highly orientation selective. Receptive fields of blob cells had circular symmetry and were of three main types, Broad-Band Center-Surround, Red-Green Double-Opponent, and Yellow-Blue Double-Opponent. Double-Opponent cells responded poorly or not at all to white light in any form, or to diffuse light at any wavelength. In contrast to blob cells, none of the cells recorded in layer 4Cp were Double-Opponent: like the majority of cells in the parvocellular geniculate layers, they were either Broad-Band or Color-Opponent Center-Surround, e.g., red-oncenter green-off-surround. To our surprise cells in layer 4Ca were orientation selective. In tangential penetrations throughout layers 2 and 3, optium orientation, when plotted against electrode position, formed long, regular, usually linear sequences, which were interrupted but not perturbed by the
Keyphrases
color system primate visual cortex orientation selective blob cell electrode position surprise cell broad-band center-surround orientation selectivity mitochondrial enzyme cytochrome oxidase whereas cell anatomical connection physiological response tangential penetration optium orientation primate primary visual cortex linear sequence circular symmetry dense region white light red-oncenter green-off-surround receptive field red-green double-opponent outside blob color-opponent center-surround upper layer parvocellular geniculate layer main type yellow-blue double-opponent double-opponent cell squirrel monkey
