Optical Illusions - perceptual'switch between the...

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 5/7/09 Click to edit Master subtitle style Optical Illusion’s
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 5/7/09 Two Main Types of Optical  Illusions Physiological illusions Cognitive illusions
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 5/7/09 Physiological illusions Are the after images of bright lights or the  adaptation of stimuli with much longer alternating  patterns. 
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 5/7/09 Follow the movement of the pink dot for few  complete rotations and then look at the black  cross in the middle. You will notice a green dot  that will erase all pink dots from the image
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 5/7/09 Hermann Grid Illusion
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 5/7/09 Cognitive illusions Cognitive illusions are commonly divided into  ambiguous illusions, distorting illusions, paradox  illusions, or fiction illusions. Ambiguous illusions  are pictures or objects that elicit a  perceptual 'switch' between the alternative interpretations.
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Unformatted text preview: perceptual 'switch' between the alternative interpretations. Distorting illusions are characterized by distortions of size, length, or curvature. Paradox illusions are generated by objects that are paradoxical or impossible. Fictional illusions are defined as the perception of objects that are genuinely not there to all but a single observer, such 5/7/09 Ambiguous illusions 5/7/09 Distorting illusions To construct the illusion, alternating light and dark "bricks" are laid in staggered rows. 5/7/09 Paradox illusions the two-dimensional figure achieves this paradox by distorting perspective, which is clearly impossible in three dimensions....
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