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OPTICAL ILLUSIONS. BY KAMILLE C. HERNANDEZ. ILLUSIONS AND PERCEPTION. ILLUSIONS DEPEND ON PERCEPTION PERCEPTION HAS THREE LINKS. THREE LINKS TO PERCEPTION. EXTERNAL / PHYSICAL. VISUAL APARATUS. INTERPRETATION OF STIMULUS. WHAT IS AN OPTICAL ILLUSION ?.

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Presentation Transcript
optical illusions

OPTICAL ILLUSIONS

BY

KAMILLE C. HERNANDEZ

illusions and perception
ILLUSIONS AND PERCEPTION
  • ILLUSIONS DEPEND ON PERCEPTION
  • PERCEPTION HAS THREE LINKS
slide3

THREE LINKS TO PERCEPTION

EXTERNAL / PHYSICAL

VISUAL APARATUS

INTERPRETATION OF STIMULUS

what is an optical illusion
WHAT IS AN OPTICAL ILLUSION ?
  • illusions that deceive the human visual system into perceiving something that is not present or incorrectly perceiving what is present.
two types
TWO TYPES
  • PHYSIOLOGICAL ILLUSIONS
  • COGNITIVE VISUAL ILLUSIONS
a physiological illusion
A PHYSIOLOGICAL ILLUSION
  • is the what happens to the eyes as a result of prolonged stimulation. i.e. brightness, tilt, movement, color etc.
  • repetitive stimulation misleads the visual system in the early stages of visual processing.
a cognitive visual illusion
A COGNITIVE VISUAL ILLUSION
  • Exploits the predictive cues of early visual processing.
  • Misdirects in-built assumptions or knowledge while processing.
three types of visual illusions
Three Types of Visual Illusions
  • Ambiguous Illusions
  • Distorting Illusions
  • Paradox illusions/
  • /Fictitious illusions.
optical illusions work by exploiting visual cues
OPTICAL ILLUSIONS WORK BY EXPLOITING VISUAL CUES

SOME MONOCULAR CUES

  • Texture Gradient
  • Relative Motion Parallax
  • Linear Perspective
  • Light and Shadow
  • Relative Size
optical illusions work by exploiting visual cues1
OPTICAL ILLUSIONS WORK BY EXPLOITING VISUAL CUES

Some Binocular Cues

  • Binocular Disparity
  • Convergence
  • Accommodation
some cool illusions
SOME COOL ILLUSIONS
  • MY SPEECH TIME
  • SLIDE EXPLAINATIONS
  • CLASS PARTICIPATION
the end
THE END
  • REFERENCES
  • INTERNET
  • TEXTBOOK
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