This image is an illusionary example of top-down processing. Here the viewer is able to focus their attention on a certain task that they would like to accomplish. For example, they could center their attention on the "black circles" or on the "white lines" that create the outline of a cube. This creates a biased goal in which whatever the viewer wants to see, they will easily perceive it (Are they really seeing black circles? Are they really seeing a cube?). Also, the image creates a sequence of eye movements. The viewer will most likely try to trace the "white lines" to see if they will create a finishing product (a cube). This design is set as a perceptual illusion.
image (URL): "http://openlearning.wordpress.com/2008/03/07/delightful-illusions/"
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