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Recent experimental evidence suggests that processes of plastic reconfiguration of the primate cerebral cortex may involve an inhibitory component. Here, we modify Kohonen's self-organizing map model of the cortex to include surround inhibition in its adaptation kernel. This addition not only improves the accuracy of the cortical representation, as measured by quantization error, it also tends to...
The neuronal empiricism hypothesis proposes that cortical neurons learn their receptive field properties and organization from statistical regularities in the stream of information that they receive. We computationally examine this hypothesis using Kohonen's self-organizing map algorithm with simulated input from the hand. By using a new adaptive coordinate algorithm we show that the map, once formed,...
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