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Neural Computation, Vol 10, 1779-1795, Copyright © 1998 by The MIT Press

LETTERS

Spatial Decorrelation in Orientation-Selective Cortical Cells

Alexander Dimitrov and Jack D. Cowan

We propose a model for the lateral connectivity of orientation-selective cells in the visual cortex. We study the properties of the input signal to the visual cortex and find new statistical structures that have not been processed in the retino-geniculate pathway. Using the idea that the system performs redundancy reduction of the incoming signals, we derive the lateral connectivity that will achieve this for a set of orientation-selective local circuits, as well as the complete spatial structure of a network composed of such circuits. We compare the results with various physiological measurements.


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