Sensory noise predicts divisive reshaping of receptive fields
Fig 8
Traveling waves in the visual cortex.
(a) Schematic of topographic model network, in which each inhibitory neuron connects with equal strength to two neighbouring excitatory neurons. The feed-forward input decreases with distance from the centre. (b) Heat map of excitatory neural responses, normalized by peak amplitude. Each row shows the response of a neuron at a specified distance from the centre. Filled and solid diamonds indicate at what time each neuron’s response is 70% of its maximum. The right panel indicates the maximum response of each neuron. (c) Same as c, but with subtractive, rather than divisive inhibition.