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NECO
2011

Collective Stability of Networks of Winner-Take-All Circuits

7 years 11 months ago
Collective Stability of Networks of Winner-Take-All Circuits
The neocortex has a remarkably uniform neuronal organization, suggesting that common principles of processing are employed throughout its extent. In particular, the patterns of connectivity observed in the superficial layers of the visual cortex are consistent with the recurrent excitation and inhibitory feedback required for cooperativecompetitive circuits such as the soft winner-take-all (WTA). WTA circuits offer interesting computational properties such as selective amplification, signal restoration, and decision making. But, these properties depend on the signal gain derived from positive feedback, and so there is a critical trade-off between providing feedback strong enough to support the sophisticated computations, while maintaining overall circuit stability. The issue of stability is all the more intriguing when one considers that the WTAs are expected to be densely distributed through the superficial layers, and that they are at least partially interconnected. We consider...
Ueli Rutishauser, Rodney J. Douglas, Jean-Jacques
Added 17 May 2011
Updated 17 May 2011
Type Journal
Year 2011
Where NECO
Authors Ueli Rutishauser, Rodney J. Douglas, Jean-Jacques E. Slotine
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