Abstract For:
Chance, F.S. and Abbott, L.F. Divisive Inhibition in Recurrent Networks.
(2000) Network 11: 119-129.
Models of visual cortex suggest that response selectivity can arise from
recurrent networks operating at high gain. However, such networks have a
number of problematic features: 1) they operate perilously close to a point
of instability, 2) small changes in synaptic strength can dramatically modify
the degree of amplification, and 3) they respond slowly to rapidly changing
stimuli. Divisive inhibition, acting through interneurons that are themselves
divisively inhibited, can solve these problems without degrading the selectivity
of a recurrent network.
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