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Biological Cybernetics

, Volume 82, Issue 2, pp 97–110 | Cite as

Self-organizing maps for visual feature representation based on natural binocular stimuli

  • J. Wiemer
  • T. Burwick
  • W. von Seelen
Article

Abstract.

We model the stimulus-induced development of the topography of the primary visual cortex. The analysis uses a self-organizing Kohonen model based on high-dimensional coding. It allows us to obtain an arbitrary number of feature maps by defining different operators. Using natural binocular stimuli, we concentrate on discussing the orientation, ocular dominance, and disparity maps. We obtain orientation and ocular dominance maps that agree with essential aspects of biological findings. In contrast to orientation and ocular dominance, not much is known about the cortical representation of disparity. As a result of numerical simulations, we predict substructures of orientation and ocular dominance maps that correspond to disparity maps. In regions of constant orientation, we find a wide range of horizontal disparities to be represented. This points to geometrical relations between orientation, ocular dominance, and disparity maps that might be tested in experiments.

Keywords

Visual Cortex Arbitrary Number Visual Feature Primary Visual Cortex Feature Representation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • J. Wiemer
    • 1
  • T. Burwick
    • 1
  • W. von Seelen
    • 1
  1. 1.Institut für Neuroinformatik, Ruhr-Universität Bochum, 44780 Bochum, GermanyDE

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