Topic: input filters

Sensory neurons in many organisms and brain areas exhibit a form of local gain control that has been described as "divisive normalization'' (Carandini & Heeger, 2011) in which the stimulus-driven activity of each neuron is divided by a factor involving the summed activity of a group of neurons. Redundancy reduction has been proposed as normative explanation of divisive normalization, and previous work has used this principle for learning normalization models (Schwartz & Simoncelli, 2000). Specifically, redundancy in filtered representations of images can be reduced by dividing by an es