The Freezing Rotation Illusion

The Freezing Rotation Illusion Free App

Rated 0.00/5 (0) —  Free Android application by Max Reinhard Dürsteler

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About The Freezing Rotation Illusion

In 2006 the "Freezing Rotation Illusion won the first prize in the "Best Visual Illusion of the Year Contest". Here an interactive application is presented where the user has a choice of different stimuli. He can change the size and the opacity and all relevant motion parameters o the center and the surround stimuli.

A continuously rotating central texture (center) is presented together with a patterned surround oscillating back-and-forth. Generally, rotation of the surround induces misperceptions of the center’s angular velocity, which are known as “induced rotational motion”: a physically rotating center is perceived as turning faster, when counter-rotating with its surround, and turning slower when co-rotating. However during co-rotation additional velocity misperceptions are observed:
(i) A percept of motionless center (“freezing rotation illusion”) arises when the average angular velocity of the surround is fixed to a much higher value than that of the center, and the appropriate oscillation frequency is set.
(ii) A percept of the center sticking to its surround (“rotational motion capture”) arises when the average angular velocity of the surround is lower than the center velocity, but higher than a given fraction of it.

Reference:
Lorincz and MR. Duersteler "The Freezing Rotation Illusion" in Oxford Companion of Visual Illusions, eds. A. Shapiro and D. Todorovic (New York, NY: Oxford University Press)

How to Download / Install

Download and install The Freezing Rotation Illusion version 2.1.0 on your Android device!
Downloaded 10+ times, content rating: Everyone
Android package: com.UntereWeinegg.FreezingRotationIllusion, download The Freezing Rotation Illusion.apk

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Android app

App History & Updates

What's Changed
The updated was made using Unity3D version 5.4.0b and exported to Android Studio 2.1.1 to build the signed APK file.
The menus of the Freezing Rotation Illusion retain now their relative size and position independently of the display's resolution.
Scripts have been modified to make controls more responsive to user interaction.
Version update The Freezing Rotation Illusion was updated to version 2.1.0

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