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A neural model for the visual attention phenomena

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Book cover Advances in Artificial Intelligence (SBIA 1995)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 991))

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Abstract

Two interesting and complex tasks are performed by the brain in the process of perception: The integration of characteristics leading to an easier recognition of a pattern as a whole (binding), and the extraction of properties that need to be detailed and analyzed (attention). Classically, binding is viewed as a process whereby sets of properties are gathered in representative entities, which are themselves linked to form higher level structures, in a sequence that culminates in the total integration of the pattern features in a localized construct. The convergent axonal projections from one cortical area to another would be the neurobiological mechanism through which binding is achieved. Attention comprises the selective excitation of neuronal networks or pathways that stand for specific pattern properties. We propose a computational model aiming at bringing together the main (and apparently diverging) ideas about binding and attention. Based on experimental data, a neuronal network representing cortical pyramidal cells is assembled, and its structure and function are related to the binding and attention phenomena. Computer simulations are shown which reproduce the electrophysiology of pyramidal cells and mimic some interesting experimental results in visual attention. We conclude by conjecturing that attention is a driven interruption in the regular process of binding.

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Authors and Affiliations

  1. COPPE - Programa de Engenharia de Sistemas e Computação, Caixa Postal 68511, CEP 21945-970, Rio de Janeiro, Brazil

    Luís Alfredo, V. de Carvalho & Valéria L. Roitman

Authors
  1. Luís Alfredo
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  2. V. de Carvalho
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  3. Valéria L. Roitman
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Jacques Wainer Ariadne Carvalho

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© 1995 Springer-Verlag Berlin Heidelberg

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Alfredo, L., de Carvalho, V., Roitman, V.L. (1995). A neural model for the visual attention phenomena. In: Wainer, J., Carvalho, A. (eds) Advances in Artificial Intelligence. SBIA 1995. Lecture Notes in Computer Science, vol 991. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0034812

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  • DOI: https://doi.org/10.1007/BFb0034812

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-60436-5

  • Online ISBN: 978-3-540-47467-8

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