Computations and Mechanisms in the Early Processing of Visual Information

A central notion in contemporary cognitive science is that mental processes involve computations defined over internal representations. This general view suggests a distinction between the study of representation and computations performed by our cognitive systems, on the one hand, and the physical brain mechanisms supporting these computations, on the other. The two studies proceed along different paths, and neither is completely reducible to the other. It is the hope of cognitive science, however, that the studies of function and mechanism can complement each other, and that theories can be developed for various cognitive subsystems that will describe and explain their computational aspects, their underlying mechanisms, and the interactions between the two.

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