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The brain and illusions
What can illusions teach us about the brain?
Curated by Gerald Carey
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These Obviously Irregular Rings Are Actually Perfectly Round Circles

These Obviously Irregular Rings Are Actually Perfectly Round Circles | The brain and illusions | Scoop.it

Look at these grey circles. They look bent, right? Like somebody put a ring in a vice and squeezed it? Actually, it’s just an incredible optical illusion courtesy of @SciencePorn. Both circles are perfectly round. Really. No really.

If you squint hard at the image, you can see the rings come their true, circular selves. How amazing and discombobulating! For more optical illusions, see this Gizmodo roundup.

Gerald Carey's insight:

All explained above.

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Illusion of the Week: The Coffer Illusion | Illusion Chasers, Scientific American Blog Network

Illusion of the Week: The Coffer Illusion | Illusion Chasers, Scientific American Blog Network | The brain and illusions | Scoop.it
The Coffer Illusion, by vision scientist Anthony Norcia of  the Smith-Kettlewell Eye Research Institute, was a Top 10 finalist in the 2006 edition of the Best ...
Gerald Carey's insight:

Look carefully...

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Solved: How Optical Illusion Turns Circles Into Hexagons

Solved: How Optical Illusion Turns Circles Into Hexagons | The brain and illusions | Scoop.it
When you stare at a colorful image and then turn to look at a neutral background, a "ghost image" appears in contrasting colors. Now, new research finds that a similar illusion occurs with shapes, turning circles into hexagons and vice versa.
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That Science Guy

Take a look at each individual dot. they’re all moving in straight lines.

Gerald Carey's insight:

Can't show you this file but it is worth a look for it's simplicity alone. Very clever illusion.

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