Vision for Action and the Contents of Perception

TL;DRAbstract

ccording to Milner and Goodale's theory of the two visual streams, the ventral stream, specialized for vision for object recognition, and the dorsal stream, speciaUzed for vision for action, are functionally and anatomically dissociated.^The dorsal stream guides on-the-fly actions.The ventral stream stores longer-term information for object recognition.The two streams thus operate on different time scales.The ventral stream assists in the perception of object constancy across different viewing conditions, whereas the dorsal stream allows action in circumstances that are continually changing.According to Milner and Goodale, processing in the dorsal pathway does not correlate with visual awareness.The dorsal pathway computes information about the absolute size and egocentric (viewerdependent) properties of objects.This information is translated directly into action.The ventral pathway, on the other hand, computes information about the allocentric (or viewer-independent) properties of obj

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