Cogprints

A feedback model of visual attention

Spratling, M W and Johnson, M H (2004) A feedback model of visual attention. [Journal (Paginated)]

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Abstract

Feedback connections are a prominent feature of cortical anatomy and are likely to have significant functional role in neural information processing. We present a neural network model of cortical feedback that successfully simulates neurophysiological data associated with attention. In this domain our model can be considered a more detailed, and biologically plausible, implementation of the biased competition model of attention. However, our model is more general as it can also explain a variety of other top-down processes in vision, such as figure/ground segmentation and contextual cueing. This model thus suggests that a common mechanism, involving cortical feedback pathways, is responsible for a range of phenomena and provides a unified account of currently disparate areas of research.

Item Type:Journal (Paginated)
Subjects:Neuroscience > Neural Modelling
Neuroscience > Computational Neuroscience
Computer Science > Neural Nets
Psychology > Perceptual Cognitive Psychology
ID Code:3542
Deposited By:Spratling, Dr Michael
Deposited On:06 Apr 2004
Last Modified:11 Mar 2011 08:55

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