Results 241 to 250 of about 24,462 (292)

Interactions between cat striate cortex neurons

Experimental Brain Research, 1983
A series of simultaneous recordings from several striate cortex neurons were made in paralyzed, anesthetized cats. Recordings were obtained with one or two bundles of extra fine wires and originated from one and two cortical orientation columns. Standard PST histograms and, in some cases, response planes were used to analyse the neuronal receptive ...
A, Michalski, G L, Gerstein, J, Czarkowska, R, Tarnecki   +3 more
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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.
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Cytoplasmic laminar bodies in the striate cortex

Journal of Ultrastructure Research, 1969
A laminated cytoplasmic inclusion consisting of curved parallel arrays of thick-walled microtubules separated by a layer of granular dense material has been identified in neurons within the visual cortex of a monkey. This body appears to be a continuation of the granular endoplasmic reticulum and previously has been noted in neurons related to other ...
L, Kruger, D S, Maxwell
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Periodicity of striate-cortex-cell receptive fields

Journal of the Optical Society of America A, 1985
If striate cells had the simple bipartite or tripartite receptive fields (RF's) classically attributed to them, they should be quite broadly tuned for spatial frequency. Most striate-cortex cells, however, are fairly narrowly tuned and would be expected to have more-periodic RF's. We have examined this question in recordings of the responses of cat and
R L, De Valois, L G, Thorell, D G, Albrecht   +2 more
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silent periodic cells in the cat striate cortex

Vision Research, 1982
A class of neurons called silent periodic cells, having properties intermediate between those in the simple and complex families, has been discriminated in the cat striate cortex. Silent periodic cells have relatively small receptive fields, a low spontaneous activity (i.e.
Kulikowski, J. J., Bishop, P. O.
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MACAQUE STRIATE CORTEX: PATTERN, MOVEMENT AND COLOUR PROCESSING *

Ophthalmic and Physiological Optics, 1984
Abstract Simple cells in the primate visual cortex provide a form of generalized, pre‐cognitive mapping of visual scenes. One point in space is represented by several orientation‐specific cells capable of signalling both standing contrast and contrast changes in the scene.
Kulikowski, JJ, Vidyasagar, TR
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Coverage and the design of striate cortex

Biological Cybernetics, 1991
Hubel and Wiesel (1977) suggested that ocular dominance and orientation columns in the macaque monkey striate cortex might be bands of uniform width that intersected orthogonally. They pointed out that if this were the case, there would be an equal allocation of cells of different orientation preference to each eye and to each point in visual space ...
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Nongeniculate afferents to striate cortex in macaques

Journal of Comparative Neurology, 1983
AbstractHorseradish peroxidase (HRP) was injected in relatively massive amounts to cover most, or portions, of opercular striate cortex in four macaques. Absence of transcallosal or circumventricular labelling, plus discrete and consistent retrograde labelling in other areas in the four cases, assured the validity and specificity of the observations ...
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Volumetric asymmetry in the human striate cortex

Experimental Neurology, 1985
A sample of 31 serially sectioned human brains, in age from 33 weeks of gestation through 94 years, was examined for volumetric asymmetries in the striate cortex. The right striate cortex was found to be larger than the left in 24 of 31 cases.
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Set Size Effects in the Macaque Striate Cortex

Journal of Cognitive Neuroscience, 2003
Abstract Attentive processing is often described as a competition for resources among stimuli by mutual suppression. This is supported by findings that activity in extrastriate cortex is suppressed when several stimuli are presented simultaneously, compared to a single stimulus.
Landman, R., Spekreijse, H., Lamme, V.A.F.   +2 more
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