Journal ArticleDOI
Functional organization of the second cortical visual area in primates.
TLDR
The functional organization of the second cortical visual area was examined with three different anatomical markers: 2-[14C]deoxy-D-glucose, cytochrome oxidase, and various myelin stains, which revealed strips running throughout the area, parallel to the cortical surface.Abstract:
The functional organization of the second cortical visual area was examined with three different anatomical markers: 2-[14C]deoxy-D-glucose, cytochrome oxidase, and various myelin stains. All three markers revealed strips running throughout the area, parallel to the cortical surface. The boundaries of these strips provide an anatomical criterion for defining the borders of this extrastriate region. Further, the demonstration of these strips allows a functional and anatomical analysis of modules in the area, just as the recent demonstration of spots in the primary visual cortex has allowed an analysis of modules there. The strips differ structurally and functionally from interstrip regions and these differences are similar to those seen between the spots and the interspot regions in the primary visual cortex. In the macaque the strips and spots differ with regard to binocular organization.read more
Citations
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Journal ArticleDOI
Segregation of form, color, movement, and depth: anatomy, physiology, and perception
TL;DR: Perceptual experiments can be designed to ask which subdivisions of the system are responsible for particular visual abilities, such as figure/ground discrimination or perception of depth from perspective or relative movement--functions that might be difficult to deduce from single-cell response properties.
Journal ArticleDOI
How parallel are the primate visual pathways
TL;DR: This proposal that the cortical and subcortical pathways are continuous, so that distinct channels of information that arise in the retina remain segregated up to the highest levels of visual cortex has far-reaching implications for the understanding of the functional organization of the visual system.
Journal ArticleDOI
Anatomy and physiology of a color system in the primate visual cortex.
TL;DR: The results suggest that a system involved in the processing of color information, especially color-spatial interactions, runs parallel to and separate from the orientation-specific system.
Journal ArticleDOI
Information Processing in the Primate Visual System: An Integrated Systems Perspective
TL;DR: The primate visual system contains dozens of distinct areas in the cerebral cortex and several major subcortical structures that are extensively interconnected in a distributed hierarchical network that contains several intertwined processing streams.
Journal ArticleDOI
Concurrent processing streams in monkey visual cortex
Edgar A. DeYoe,D. C. Van Essen +1 more
TL;DR: It is suggested that many aspects of perception involve significant overlap across a number of paths and cortical areas.
References
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Journal ArticleDOI
Changes in the visual system of monocularly sutured or enucleated cats demonstrable with cytochrome oxidase histochemistry
TL;DR: The results indicated that the deprivation caused by monocular suture produced a decrease in the cytochrome oxidase staining of the binocular segment of the deprived geniculate laminae of kittens, leading to a significant decreases in the level of oxidative enzyme activity one to several synapses away.
Journal ArticleDOI
A Computational Theory of Human Stereo Vision
David Marr,Tomaso Poggio +1 more
TL;DR: In this paper, an algorithm for solving the stereoscopic matching problem is proposed, which consists of five steps: (1) each image is filtered at different orientations with bar masks of four sizes that increase with eccentricity.
Journal ArticleDOI
The neural mechanism of binocular depth discrimination
TL;DR: Binocularly driven units were investigated in the cat's primary visual cortex in a bid to understand why cats have good night vision and why cats with poor vision have poor daytime vision.
Journal ArticleDOI
Sequence regularity and geometry of orientation columns in the monkey striate cortex
David H. Hubel,Torsten N. Wiesel +1 more
TL;DR: Column thickness, size of shifts in orientation, and the rate of change of orientation with distance along the cortex seemed to be independent of eccentricity, at least between 2° and 15° from the fovea.
Journal ArticleDOI
Binocular interaction and depth sensitivity in striate and prestriate cortex of behaving Rhesus monkey
G. F. Poggio,B. Fischer +1 more
TL;DR: The results suggest that there are cells in fovea1 striate and prestriate which may be part of the cortex of monkeys trained to fixate monocularly and binocularly by rewarding them for detecting an abrupt change in the intensity of a small luminous spot.