Results 211 to 220 of about 494,197 (285)

The striate cortex and hemianopia

Handbook of Clinical Neurology, 2021
We begin with the functions of the striate cortex (area V1 of the visual cortex) and end with a review of the effects of damage to striate cortex or its inputs; namely, homonymous hemifield defects. Clinical and anatomical studies accrued over the past 25 years have modified our understanding of the role of V1 in vision. We discuss the evidence that V1
Alexander P. Leff, Semir Zeki
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An evaluation of the two-dimensional Gabor filter model of simple receptive fields in cat striate cortex.

Journal of Neurophysiology, 1987
1. Using the two-dimensional (2D) spatial and spectral response profiles described in the previous two reports, we test Daugman's generalization of Marcelja's hypothesis that simple receptive fields belong to a class of linear spatial filters analogous ...
J. P. Jones, L. A. Palmer
semanticscholar   +1 more source

Plasticity of ocular dominance columns in monkey striate cortex.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 1977
Ocular dominance columns were examined by a variety of techniques in juvenile macaque monkeys in which one eye had been removed or sutured closed soon after birth.
D. Hubel, T. Wiesel, S. Levay
semanticscholar   +1 more source

Binocular interaction in striate cortex of kittens reared with artificial squint.

Journal of Neurophysiology, 1965
BEFORE A KITTEN OPENS ITS EYES, and long before the eyes are used in visual exploration, single cells of the primary visual cortex respond to natural stimulation with the same specificity as is found in the adult (5).
D. Hubel, T. Wiesel
semanticscholar   +1 more source

Contrast adaptation in striate cortex of macaque

Vision Research, 1989
We have characterized the contrast-response relationships for simple and complex cells in striate cortex of macaque monkey, before and during adaptation to high-contrast sinusoidal gratings of the optimal spatial-frequency and orientation. Adaptation brings about systematic changes in the steepness of contrast-response curves and in the effective ...
Peter Lennie, Derryl D. DePriest, Gary Sclar   +2 more
openaire   +2 more sources

Striate cortex of monkey and cat: contrast response function.

Journal of Neurophysiology, 1982
1. We measured the responses of 247 neurons recorded from the striate cortex of monkeys and cats as a function of the contrast intensity of luminance-modulated spatialtemporal sine-wave grating patterns to provide a qualitative description and a ...
D. G. Albrecht, D. B. Hamilton
semanticscholar   +1 more source

Tetraploidy and the striate cortex

Pathology, 1977
A tetraploid population of glial cell nuclei has been identified in layers one, two and three of the entire striate cortex. These have approximately twice the volume of diploid glial cell nuclei.
openaire   +3 more sources

Striate cortex ablation and spatial vision

Brain Research, 1976
Normal and visually decorticate rats were trained to orient to a luminous target. All subjects reached the same criterion of orientation accuracy, but operated subjects required more training and exhibited greater response latency throughout testing. To determine if visually decorticate subjects located the target according to the retinal position of ...
Robert J. Ferrier, Roderick M. Cooper
openaire   +3 more sources

The two-dimensional spatial structure of simple receptive fields in cat striate cortex.

Journal of Neurophysiology, 1987
1. A reverse correlation (6, 8, 25, 35) method is developed that allows quantitative determination of visual receptive-field structure in two spatial dimensions. This method is applied to simple cells in the cat striate cortex. 2. It is demonstrated that
Judson, P. Jones, Larry, A., Palmer Department ofAnatomy   +4 more
semanticscholar   +1 more source