Results 81 to 90 of about 494,197 (285)

Towards a Theory of the Laminar Architecture of Cerebral Cortex: Computational Clues from the Visual System [PDF]

open access: yes, 2001
One of the most exciting and open research frontiers in neuroscience is that of seeking to understand the functional roles of the layers of cerebral cortex.
Grossberg, Stephen, Raizada, Rajeev D.S.
core   +1 more source

Linking Visual Development and Learning to Information Processing: Preattentive and Attentive Brain Dynamics [PDF]

open access: yes, 2004
National Science Foundation (SBE-0354378); Office of Naval Research (N00014-95-1 ...
Grossberg, Stephen
core   +1 more source

Understanding visual map formation through vortex dynamics of spin Hamiltonian models

open access: yes, 2003
The pattern formation in orientation and ocular dominance columns is one of the most investigated problems in the brain. From a known cortical structure, we build spin-like Hamiltonian models with long-range interactions of the Mexican hat type.
A. Grinvald   +16 more
core   +1 more source

Concurrent investigation of global motion and form processing in amblyopia: an equivalent noise approach [PDF]

open access: yes, 2016
PURPOSE: Directly comparing the motion and form processing in neurologic disorders has remained difficult due to the limitations in the experimental stimulus.
Jeon, Seong T.   +2 more
core   +3 more sources

Variation of the major sulci of the occipital lobe - A morphological study [PDF]

open access: yesAl Ameen Journal of Medical Sciences, 2014
Background: The occipital lobe of cerebrum is intimately related with visual function. The detailed anatomy of this lobe is essential for the surgeons and radiologists.
Lopamudra Mandal   +5 more
doaj  

Circuit Mechanisms Governing Local vs. Global Motion Processing in Mouse Visual Cortex

open access: yesFrontiers in Neural Circuits, 2017
A withstanding question in neuroscience is how neural circuits encode representations and perceptions of the external world. A particularly well-defined visual computation is the representation of global object motion by pattern direction-selective (PDS)
Rune Rasmussen, Keisuke Yonehara
doaj   +1 more source

A neurodynamical model of brightness induction in v1. [PDF]

open access: yesPLoS ONE, 2013
Brightness induction is the modulation of the perceived intensity of an area by the luminance of surrounding areas. Recent neurophysiological evidence suggests that brightness information might be explicitly represented in V1, in contrast to the more ...
Olivier Penacchio   +2 more
doaj   +1 more source

Linking the Laminar Circuits of Visual Cortex to Visual Perception [PDF]

open access: yes, 2001
A detailed neural model is being developed of how the laminar circuits of visual cortical areas V1 and V2 implement context-sensitive binding processes such as perceptual grouping and attention, and develop and learn in a stable way.
Grossberg, Stephen
core   +1 more source

Brain Differently Changes Its Algorithms in Parallel Processing of Visual Information [PDF]

open access: yes, 2000
Feedback from the visual cortex (Vl) to the Lateral Geniculate Nucleus (LGN) in macaque monkey increase contrast gain of LGN neurons for black and white (B&W) and for color (C) stimuli.
A Gove   +11 more
core   +2 more sources

Spatial properties of neurons in the monkey striate cortex

open access: yesProceedings of the Royal Society of London. Series B. Biological Sciences, 1987
Contrast sensitivity as a function of spatial frequency was determined for 138 neurons in the foveal region of primate striate cortex. The accuracy of three models in describing these functions was assessed by the method of least squares. Models based on difference-of-Gaussians (DOG) functions were shown to be superior to those based on the Gabor ...
Hawken, M, Parker, A
openaire   +3 more sources

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