Attention and camouflage in three dimensions
Binocular vision is thought to have evolved primarily for the perception of depth and shape. Yet our ability to use two eyes to see depth has also been suggested as a way for predators to ‘break camouflage’, and beat the elegant camouflage that many prey animals display in terms of their patterning and shading. Surprisingly, the extent to which binocular vision does allow camouflage to be broken, and the brain mechanisms used to do so, have been little studied. There are at least 3 stages involved in breaking camouflage: attend to a location, detect an object is present, use shape and depth to identify the object. In this project we will explore the first two of these using behavioural and human neuroscience techniques to, for the first time, characterise the importance of depth for the selective attention process.
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