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The Science of Illusions May 7, 2013

The Science of Illusions May 7, 2013. Cedar Riener Assistant Professor of Psychology Randolph-Macon College Twitter: @ criener. Science Pub RVA. Decision-Making. Perception. Illusion of Being. Attention. Illusions are Everywhere!. Illusion of Being There. Happiness. Language. Memory.

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The Science of Illusions May 7, 2013

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  1. The Science of IllusionsMay 7, 2013 Cedar Riener Assistant Professor of Psychology Randolph-Macon College Twitter: @criener Science Pub RVA

  2. Decision-Making Perception Illusion of Being Attention Illusions are Everywhere! Illusion of Being There Happiness Language Memory Conscious Will

  3. Illusions are Informative How we see it wrong -> How vision works

  4. Visual Illusions Show Decisions • We are interested in surface colors, object shapes • But color and shape are not on the retina • We guess at color and shape

  5. Brightness is an Illusion

  6. Which square is a lighter gray?

  7. Illusions and Science: Brusspuporiginal illusion: Adelson Checkerboard

  8. Brightness is a Decision Luminance = illumination/reflectance illumination luminance reflectance

  9. Shape is an Illusion

  10. Ames Window

  11. Belgian Rock Band: GooseMusic Video for “British Mode”Directed by Keith Schofield

  12. Attention We only see what we pay attention to

  13. Attention movies

  14. Memory is an Illusion Listen to these words

  15. Your memories change every time you remember Not “record, rewind and play”

  16. Which were on the previous list? • Bed • Paper • Keyboard • Door • Drowsy • Awake • Doctor • Dream • Sleep • Mouse • Camera • Box • Hospital • Rest • Skin • Nurse

  17. Illusions are Everywhere (Review) • Vision – Color/Brightness and shape are guesses and decisions • Attention – We ignore most of what is out there • Memory – We recreate our memories every time we remember

  18. Illusions inform us of limits Image on the eye Attention Memory } Constrained, short, sparse

  19. But we’re good enough, smart enough… To solve the common problems of human life (among the hardest engineering problems ever): • Understanding and producing human speech • Walking • Object Perception (recognizing words, faces)

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