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Depth Binocular Vision Depth Illusions Miscellaneous Rivalry Stereo

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Illusions Aftereffects Ambiguous Figures Contingent Aftereffects Geometrical Illusions Impossible Figures Miscellaneous Shape Illusions Size Illusions

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Motion Apparent Motion Biological Motion Eye Movements Heading Miscellaneous Optic Flow Perception And Action Plaids And Gratings Temporal Factors

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Contributions to Viperlib
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 foot qt movie from stuart anstis

foot qt movie from stuart anstis

File Size: 77Kb

Resolution: 570x570

The Footsteps Illusion: the yellow square appears to 'jump' across the screen. It actua...

062001-03

062001-03

File Size: 79Kb

Resolution: 570x570

Explaining the apparent direction of plaid motion: intersection of contraints

062301-02

062301-02

File Size: 68Kb

Resolution: 570x570

Direction of motion: the aperture problem

062301-03

062301-03

File Size: 65Kb

Resolution: 570x570

Direction of motion: the aperture problem

062301-04

062301-04

File Size: 57Kb

Resolution: 570x570

Direction of motion: the aperture problem

062301-06

062301-06

File Size: 53Kb

Resolution: 570x570

Direction of plaid motion: intersection of constraints

062301-07

062301-07

File Size: 53Kb

Resolution: 570x570

Direction of plaid motion: intersection of constraints

062301-08

062301-08

File Size: 63Kb

Resolution: 570x570

Perceptual coherence data: A - the effect of contrast on coherence. Open symbols show p...

062301-09

062301-09

File Size: 54Kb

Resolution: 570x570

A model of the mechanisms underlying perceptual coherence. This model proposes motion ...

062301-10

062301-10

File Size: 93Kb

Resolution: 570x570

Data showing that threshold elevation is not completely stimulus specific when comparin...

1

1

File Size: 76Kb

Resolution: 570x570

An animated demonstration of Newton's first law of motion, which specifies that objects...

1 s 0001

1 s 0001

File Size: 70Kb

Resolution: 570x570

How motion affects appearance: initially the rotating teapot appears shiny. The reflec...

1 spokes3 qt movie

1 spokes3 qt movie

File Size: 214Kb

Resolution: 570x570

An animated demonstration of the illusion whereby the wheel appears to rotate clockwise...

10-magic tray
  • best

10-magic tray

File Size: 75Kb

Resolution: 440x500

Just turn the image upside-down and the wine glass will be seen standing outside the tray.

101-magic eggs van

101-magic eggs van

File Size: 40Kb

Resolution: 500x437

Who stole the egg from Chiquita our favourite chicken? As you can see on the 4-piece pu...

Thumbnail

169-seal toucan amb

File Size: 85Kb

Resolution: 570x570

Just turn the image upside down and you will discover a croaking toucan. (Ambiguous fig...

179-parallel lines dis

179-parallel lines dis

File Size: 30Kb

Resolution: 500x500

Even though they seem to bulge inwards, the lines are perfectly straight and parallel t...

18-impossible dice

18-impossible dice

File Size: 110Kb

Resolution: 570x570

Impossible dice. (Impossible figure.)

191-bidirectional face amb
  • best

191-bidirectional face amb

File Size: 37Kb

Resolution: 431x500

Wherever you are, the eyes of the ghost face follow you...

2 s 0002

2 s 0002

File Size: 81Kb

Resolution: 570x570

How motion affects appearance: initially the rotating shape appears shiny. The reflect...

261-blue lines twist col

261-blue lines twist col

File Size: 78Kb

Resolution: 436x500

Do the blue lines twist up and down like a water flow? This illusion is mainly due to l...

2ballswake

2ballswake

File Size: 47Kb

Resolution: 641x481

Running the movie (in Extra info) you should see this. White discs are real, dark regio...

3 crossover qt movie

3 crossover qt movie

File Size: 266Kb

Resolution: 570x570

An animated demonstration of the crossover illusion, where the bar with the higher cont...

3 s 0003

3 s 0003

File Size: 59Kb

Resolution: 570x570

How motion affects appearance: initially the rotating shape appears shiny. The reflect...