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Interactions between attention, context and learning in primary Visual Cortex (2000)
| Citations: | 42 - 0 self |
BibTeX
@MISC{Gilbert00interactionsbetween,
author = {Charles Gilbert and Minami Ito and Mitesh Kapadia and Gerald Westheimer},
title = {Interactions between attention, context and learning in primary Visual Cortex},
year = {2000}
}
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Abstract
Attention in early visual processing engages the higher order, context dependent properties of neurons. Even at the earliest stages of visual cortical processing neurons play a role in intermediate level vision — contour integration and surface segmentation. The contextual influences mediating this process may be derived from long range connections within primary visual cortex (V1). These influences are subject to perceptual learning, and are strongly modulated by visuospatial attention, which is itself a learning dependent process. The attentional influences may involve interactions between feedback and horizontal connections in V1. V1 is therefore a dynamic and active processor, subject to top-down influences.
Keyphrases
intermediate level vision contour integration dependent process long range connection top-down influence primary visual cortex context dependent property perceptual learning surface segmentation visual cortical processing neuron visuospatial attention contextual influence active processor early visual processing attentional influence elsevier science ltd horizontal connection
