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Computations in the Vertebrate Retina: Gain Enhancement, Differentiation and Motion DiscriminationKoch, Christof, Poggio, Tomaso, Torre, Vincent 01 September 1986 (has links)
The vertebrate retina, which provides the visual input to the brain and its main interface with the outside world, is a very attractive model system for approaching the question of the information processing role of biological mechanisms of nerve cells. It is as yet impossible to provide a complete circuit diagram of the retina, but it is now possible to identify a few simple computations that the retina performs and to relate them to specific biophysical mechanisms and circuit elements. In this paper we consider three operations carried out by most retinae: amplification, temporal differentiation, and computation of the direction of motion of visual patterns.
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