Impossible Triangle
Möller-Lyer Illusion
Necker Cube
Queen Elizabeth II
Schröder Stairs
Spirit Catcher
Young Girl - Old Woman
Zöllner Illusion
Common Optical Illusions
- Are the two lines the same length?
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- Is the top or the bottom of the box closest to you?
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- Does this box really have curved edges?
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- Which of the two inner circles is the same size? Measure them and see for yourself.
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- Which of the two inner circles is the same size? Measure them and see for yourself.
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- Can you see the grey spots where the dark lines intersect?
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- Are the long lines parallel?
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- Can you see the grey spots where the white lines intersect?
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- Which of the two lines between the tracks is longer?
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- Is there really a triange drawn in this picture?
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The Illusions @ uni-paderborn [DE]
- afterimage
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- brightness
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- brightness/color illusions
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- color
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- contrast
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- fortification
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- Geometric & Brightness/Color illusions
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- geometric illusions
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- irradiation
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- machband I
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- machband II
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- movement
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- ponzo-arrow
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- zoellner
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Perception section of Lyman Cognitive Psychology lecture [NorthWestern]
Lecture outline w/ illustrations.
- Context Effects & Top-Down Processing
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- Depth Cues
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- Figure/Ground Segregation
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- Gestalt Principles of Perceptual Grouping
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Fun Things @ The Joy of Visual Perception
- Apparent motion (Phi Phenomenon)
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- Blind Spot Demonstration
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- Boynton Illusion
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- Brightness Illusion
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- Color and Brightness Influence Distance Perception
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- Color Assimilation phenomenon
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- Fun Things
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- Hering and Pogendorf illusions
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- Hermann Grid Illusion
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- Horizontal-Vertical Illusion
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- Image Disappears Before Your Eyes
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- In which avocado half is the pit?
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- Kanizsa Illusion
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- Mach Bands
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- More equal spots that appear unequal.
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- Muller-Lyer Illusion
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- Necker cube
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- Ouchi apparent motion illusion
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- Perspective Illusion
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- Pixelized Famous Person
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- Radiating Lines
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- Reversible Image
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- Spatial Frequency Adaptation
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- Spots that are physically equal don`t always appear so.
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Internet Psychology Laboratory
- Ambiguous Figures [demo] (Adaptation and Constancy)
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- Horizontal/Vertical
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- McGurk [demo] (Auditory Mismatch)
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- Müller-Lyer
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- Musical Scale [demo] (Music Perception)
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- Pitch Scaling (Magnitude Estimation)
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- Poggendorff
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- Ponzo
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- Selective Adaptation [demo] (Adaptation and Constancy)
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- Signal Detection (Sensitivity)
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Out of sight, out of mind? @ London Science Museum
- Blind spot
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- Complementary colours
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- How long ? (Müller-Lyer)
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- Persistence of vision
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- Stroop effect
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The Exploratory [UK]
Explore the world of science, hands-on, in one of the most exciting educational centres in the UK!
- The Cafe Wall distortion illusion
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- Colour after images
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Buchenroth Publishing Company presents Optical Illusion Clipart
- The Boys from Syracuse
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- Dr. Renshaw`s Cow
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- Duck and rabbit
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- Impossible figure
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- The Isle of Dogs
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- Jesus Christ
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- L`egs-Istential Quandary
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- My wife and my mother-in-law.
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- Reversible figure
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Mark's Newbold's Java Stuff
For Java capable browsers. The Counter Rotating Spiral Illusion, The Animated Necker Cube, Hypercube (and other) stereograms.
- Animated Necker Cube
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- Counter-Rotating Spirals Illusion
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Visual Research [Rutgers]
- Biological Motion demo [Rutgers]
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An applet demonstrating the interpretation of reduced stimuli.
- The Brick Illusion
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- Masking Block
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- Masking Lines
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Others
- Cartoonish illusions
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- Ambiguous Figures @ Brain & Behavior page [Bryn Mawr]
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- Apparent Motion [Java Applet]
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- Blindsight demo [Bryn Mawr]
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Similar to xx Signal Detection presentation, but with a different twist on data collection.
- Breathing Square [CalTech] (Java Applet)
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- Cafe Wall Optical Illusion
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- Color Matters
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J.L. Morton`s fine page on Color.
- Common Optical Illusions
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- Grand Illusions page
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Welcome to Grand Illusions, the site for the enquiring mind. With optical illusions, scientific toys, visual effects, and even a little magic.
- Illusions with Shadows
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Interesting psychophysical experiments with shadows.
- Interactive Illustrations of Color Perception
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Java script dependent color demonstrations with deep Color Theory text.
- Interdisciplinary Illusions
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Includes links to teacher and student resources.
- Moiré pattern [Java applet]
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- Motion demos @ Stuart Anstis Slides Pages
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- Musical Illusions and Paradoxes
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Auditory illusions by U.C.S.D. professor Diana Deutche. You can order her musical illusion CD from this site.
- An Optical Illusion: Square @ grand-illusion
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- Optical Illusions @ indiana
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- Photorealistic Optical Illusion
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Photorealism and multimedia.
- Psychological concepts, with exhaustive collection of illusions [Zurich]
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An illusion is not a simple error in perception
- Slides for perception lecture [UCSD]
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Acuity tests and color illusions.
- Tony`s Applet Demo Site
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Complete URL to this document:
"http://www.ulb.ac.be/psycho/fr/docs/museum/Links/Tutorials.html"
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