Lec 4 Perceeption

Lec 4 Perceeption - Illusions American flag, waterfall...

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Illusions American flag, waterfall Sound location Direct Perception: J. J. Gibson Reading and the Word Superiority Effect Object Superiority Effect Object Recognition
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Stare at the flag for thirty seconds, then quickly look at a blank wall or white piece of paper. What do you see? This is an example of a physiological optical illusion.
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Waterfall Illusion http://www.bu.edu/smec/lite/percepti on/waterfall/
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Hearings Pitch Cycle by cycle coding Place coding Location Time difference coding Loudness Frequency envelope
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J. J. Gibson and Direct Perception Evolutionary argument about perceptual systems Methodological argument about concentrating on correct perception not illusions Texture gradients as an example
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Ecological Approaches to Perception • J. J. Gibson (1950): “The perception of the visual world” – perception is driven exclusively by the structure of the environment (i.e., Direct Perception)
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Lec 4 Perceeption - Illusions American flag, waterfall...

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