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A Principle for the Formation of the Spatial Structure of Cortical Feature Maps
Citation key Obermayer1990b
Author Obermayer, K. and Ritter, H. and Schulten, K.
Pages 8345 – 8349
Year 1990
Journal Proceedings of the National Academy of Sciences of the United States of America
Publisher PNAS
Abstract Orientation-selective cells in the striate cortex of higher animals are organized as a hierarchical topographic map of two stimulus features: (i) position in visual space and (ii) orientation. We show that the observed structure of the topographic map can arise from a principle of continuous mapping. For the realization of this principle we use a mathematical model that can be interpreted as an adaptive process changing a set of synaptic weights, or synaptic connection strengths, between two layers of cells. The patterns of orientation preference and selectivity generated by the model are similar to the patterns seen in the visual cortex of macaque monkey and cat and correspond to a neural projection that maps a more than two-dimensional feature space onto a two-dimensional cortical surface under the constraint that shape and position of the receptive fields of the neurons very smoothly over the cortical surface.
Bibtex Type of Publication Selected:development
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