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Improvement in visual sensitivity by changes in local context: Parallel studies in human observers and in V1 of alert monkeys
To explore the role of primary visual cortex in contour integration, we measured the contextual sensitivity of human contrast thresholds and of superficial layer complex cells in monkey V1. AnExpand
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Synaptic physiology of horizontal connections in the cat's visual cortex
Horizontal connections are a principal component of intrinsic cortical circuitry. They arise mainly from pyramidal cells and course parallel to the brain's surface for distances as long as 8 mm,Expand
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Columnar specificity of intrinsic horizontal and corticocortical connections in cat visual cortex
A prominent and stereotypical feature of cortical circuitry in the striate cortex is a plexus of long-range horizontal connections, running for 6–8 mm parallel to the cortical surface, which has aExpand
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Functional architecture of cortex revealed by optical imaging of intrinsic signals
Optical imaging of cortical activity offers several advantages over conventional electrophysiological and anatomical techniques. One can map a relatively large region, obtain successive maps toExpand
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Receptive field dynamics in adult primary visual cortex
THE adult brain has a remarkable ability to adjust to changes in sensory input. Removal of afferent input to the somatosensory, auditory, motor or visual cortex results in a marked change of corticalExpand
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Clustered intrinsic connections in cat visual cortex
The intrinsic connections of the cortex have long been known to run vertically, across the cortical layers. In the present study we have found that individual neurons in the cat primary visual cortexExpand
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Brain States: Top-Down Influences in Sensory Processing
All cortical and thalamic levels of sensory processing are subject to powerful top-down influences, the shaping of lower-level processes by more complex information. New findings on the diversity ofExpand
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The Neural Basis of Perceptual Learning
Perceptual learning is a lifelong process. We begin by encoding information about the basic structure of the natural world and continue to assimilate information about specific patterns with which weExpand
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Laminar differences in receptive field properties of cells in cat primary visual cortex
  • C. Gilbert
  • Materials Science, Medicine
  • The Journal of physiology
  • 1 June 1977
1. Cells in area 17 of the cat visual cortex were studied with a view towards correlating receptive field properties with layering. A number of receptive field parameters were measured for all units,Expand
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Axonal sprouting accompanies functional reorganization in adult cat striate cortex
REMOVAL of sensory input from a focal region of adult neocortex can lead to a large reorganization of cortical topography within the deprived area during subsequent months1–9. Although this form ofExpand
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