ScienceDaily -- Cognitive scientists ran an experiment to understand how the brain searches for an object with a known shape. They asked subjects to track the movement of dots, and used fMRI to see which parts of the brain activated. The fMRI showed that when the brain is looking for a particular feature, such as a certain shape or color, it is searching for that feature everywhere in the visual field, not just in the spot where the eyes focus.
http://www.sciencedaily.com/videos/2008/0207-lost_and_found.htm
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