Proceedings PaperRecent progress in artificial vision
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Previous research suggests that direct electrical stimulation of the visual cortex with an array of electrodes may be a viable means to provide a limited restoration of a lost visual sense to the profoundly blind. More recent work indicates that this goal may only be achieved by passing currents into the cortex via arrays of electrodes which penetrate into the visual cortex. An electrode array possessing a unique three dimensional architecture is described which could form the cornerstone of an 'artificial vision system'. A system for inserting such complex structures into cortical tissues is also described. Finally, estimates are made regarding the extent of visually guided task performance which may be expected from the limited, pixelized visual sense which could be produced with an artificial vision system.