Recurrent network center surround lateral connections

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Unformatted text preview: phase plane. Recurrent network: center-surround lateral connections Recurrent weight distribution W(y – x) + - - x y External input I(x,t) ∂S ( x, t ) = − S ( x , t ) + ∑W ( y − x ) g S ( y , t ) + I ( x , t ) ∂t y ( ) where S ( x, t ) is the activity of the neuron at location x and time t and g ( ) is gain function. Recurrent network with symmetric lateral connections Symmetric recurrent weight distribution + - - x External input y Snapshots of the activity of a symmetric recurrent network starting from different initial states Asymmetric lateral connections Recurrent weight distribution shifted to the right + - - x y Snapshots of the activity of an asymmetric recurrent network starting from different initial states (...
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This document was uploaded on 02/28/2014 for the course BME 580.402 at Johns Hopkins.

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