Self-organization of color opponent receptive fields and laterally connected orientation maps

Authors:
James A. Bednar;Judah B. De Paula;Risto Miikkulainen
Affiliations:
Department of Computer Sciences, The University of Texas at Austin, Austin, TX 78712-1188, USA;Department of Computer Sciences, The University of Texas at Austin, Austin, TX 78712-1188, USA;Department of Computer Sciences, The University of Texas at Austin, Austin, TX 78712-1188, USA
Venue:
Neurocomputing
Year:
2005

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Abstract

Long-range lateral connections in the primary visual cortex (V1) are known to link neurons with similar orientation preferences, but it is not yet known how color-selective cells are connected. Using a self-organizing model of V1 with natural color image input, we show that realistic color-selective receptive fields, color maps, and orientation maps develop. Connections between orientation-selective cells match previous experimental results, and the model predicts that color-selective cells will primarily connect to other cells with similar chromatic preferences. These findings suggest that a single self-organizing system may underlie the development of orientation selectivity, color selectivity, and lateral connectivity.