Orientation selectivity, preference, and continuity in monkey striate cortex

@inproceedings{Blasdel1992OrientationSP,
  title={Orientation selectivity, preference, and continuity in monkey striate cortex},
  author={Gg Blasdel},
  booktitle={The Journal of neuroscience : the official journal of the Society for Neuroscience},
  year={1992}
}
  • Gg Blasdel
  • Published in
    The Journal of neuroscience…
    1 August 1992
  • Biology
Maps of orientation preference and selectivity, inferred from differential images of orientation (Blasdel, 1992), reveal linear organizations in patches, 0.5-1.0 mm across, where orientation selectivities are high, and where preferred orientations rotate linearly along one axis while remaining constant along the other. Most of these linear zones lie between the centers of adjacent ocular dominance columns, with their short iso-orientation slabs oriented perpendicular, in regions enjoying the… 
Geometry of orientation and ocular dominance columns in monkey striate cortex
  • K. ObermayerGg Blasdel
  • Biology
    The Journal of neuroscience : the official journal of the Society for Neuroscience
  • 1993
TLDR
It is shown that ocular dominance is organized in slabs and that orientation preferences are organized in linear sequences likely to reflect slabs, and that linear zones (arising where orientation preferences change along straight axes) tend to lie at the edges of Ocular dominance columns.
Differential imaging of ocular dominance and orientation selectivity in monkey striate cortex
  • Gg Blasdel
  • Biology
    The Journal of neuroscience : the official journal of the Society for Neuroscience
  • 1992
TLDR
Differential images of ocular dominance, acquired by comparing responses to the two eyes, reveal dark and light bands where cortical cells are dominated by the right and left eyes, suggesting a lateral correlation between binocularity and orientation selectivity and the simultaneous emergence of these properties in layers receiving input from layer 4c.
Organization of ocular dominance and orientation columns in the striate cortex of neonatal macaque monkeys.
TLDR
Infant animals find many of the organizational features described previously in adults, including patch-like linear zones, singularities, and fractures, in animals as young as 3 1/2 weeks of age, which imply that ocular dominance and orientation patterns change their relationship, and may even drift past one another, as young animals mature.
The spatial pattern of response magnitude and selectivity for orientation and direction in cat visual cortex.
TLDR
Analysis of optical maps of cat visual cortex by fitting model tuning functions to the responses reveals features not previously evident, including half-rotation orientation singularities located within regions of low orientation vector magnitude.
The organization of orientation selectivity throughout macaque visual cortex.
TLDR
A double-label deoxyglucose technique was used to study orientation columns throughout visual cortex in awake behaving macaques, suggesting that orientation column topography systematically changes with retinotopic eccentricity.
Orientation Selectivity and the Arrangement of Horizontal Connections in Tree Shrew Striate Cortex
TLDR
The results indicate that horizontal connections outside a radius of 500 μm from the injection site exhibit not only modular specificity, but also specificity for axis of projection, suggesting specific ways that horizontal circuits contribute to the response properties of layer 2/3 neurons and to mechanisms of visual perception.
Orientation and color columns in monkey visual cortex.
  • B. Dow
  • Biology
    Cerebral cortex
  • 2002
TLDR
Evidence is summarized suggesting that color is mapped continuously across the monkey's primary visual cortex, with the ends of the spectrum located at 'red' and 'blue' cytochrome oxidase blobs and extra-spectral purple located between adjacent red and blue blobs in the same OD column.
Detecting the orientation of short lines in the periphery.
TLDR
Three of the four subjects were most sensitive for targets aligned with the meridian of presentation, which suggests that the visual system has the highest resolution in directions radiating from the fovea, which may be particularly useful for the analysis of flow fields resulting from forward translation.
Optically imaged maps of orientation preference in primary visual cortex of cats and ferrets
TLDR
It is hypothesize that a key determinant of orientation maps, the relationship between orientation domain size and spacing, expresses an anatomical link between sizes of thalamocortical arbors and horizontal intracortical connections in area 17.
Functional Organization of Visual Cortex in the Owl Monkey
TLDR
The results suggest that the modular organization of V1 is similar across primates and indeed across most mammals, and V2 organization in owl monkeys also appears similar to that of other simians but different from that of prosimians and other mammals.
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  • Biology
    The Journal of neuroscience : the official journal of the Society for Neuroscience
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TLDR
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