Blindsight refers to the ability to localize objects within an apparently blind visual field; traces of visual perceptual ability in blind areas. According to Weiskrantz, Blindsight is the effect of certain kinds of brain damage in which the subject has an inability to recognize objects but retains the ability to detect the presence and movement of objects It is the ability in those with cortical blindness to indicate that a stimulus is present, that it has moved, or that it is in a certain location, even though they have no conscious ability to "see" in the conventional sense.

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