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OffbeatThis optical illusion could affect your vision for over 3 months if you look at it for too long

19:27  08 november  2018
19:27  08 november  2018 Source:   msn.com

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OPTICAL illusions can trick our minds into seeing many things After starring at the mesmerising illusion , people were able to read letters that were previously too small for them to read. They then asked more than 70 people to look at a a spiral pattern that rotated either clockwise or anticlockwise

However, this is one optical illusion you probably shouldn't go through with. Studies have reported some after- effects last over three months . So last chance to turn back and check out our list of beautiful Japanese And if you were brave enough to try it then you ’ll be stuck with it for a while too .

This optical illusion could affect your vision for over 3 months if you look at it for too long© Shutterstock
  • The McCollough effect is an aftereffect of looking at colorful gratings (parallel bars or stripes).
  • If you look between red and green stripes for a few minutes, black and white stripes also appear colorful.
  • Studies have shown that looking at colorful gratings for more than 10 minutes can make the effect last over three months.

To figure out how an optical illusion works, sometimes you just have to stare at it for a while. But when it comes to the McCollough effect, do so at your own risk.

The phenomenon was discovered by Celeste McCollough in 1965. McCollough found that staring at colorful gratings for too long can affect vision for months to come. Turns out, looking at these gratings for more than 10 minutes can have the effect last over three months.

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Staring at this stripey grid could affect your vision for a while according to experts. THIS mind bending optical illusion could do more than just puzzle you , the effects could last for months The look at the black and white grid below. After a while the black and white lines will appear with a pink

Optical illusions . You people love 'em. Can you work this out, or are we offically crazy? Answers on the back of a postcard, please (with some sweets, preferably. This is all too much The Impractical Jokers Are Getting A GAME SHOW Called 'Misery Index'.

Here's how it works.

Look at the red and black stripes on the left for a few seconds. Then switch and look at the green and black stripes on the right for a few seconds. Continue alternating between the colors for at least three minutes.

This optical illusion could affect your vision for over 3 months if you look at it for too long© Fredifortakeoff/Wikimedia Commons

Now, look at the black and white stripes. The white horizontal stripes should appear green, and the white vertical stripes should look red.

This optical illusion could affect your vision for over 3 months if you look at it for too long© Wikimedia Commons

This phenomenon is a kind of afterimage, which Encyclopedia Britannica defines as a "visual illusion in which retinal impressions persist after the removal of a stimulus, believed to be caused by the continued activation of the visual system." In other words, the strong colors make an impression on the visual system and cause it to think that it's still looking at the colors even when it's not, making the black and white stripes appear tinged with red and green.

The same way a camera's bright flash can linger in your vision, a study in the Journal of Experimental Psychology found that the McCollough effect can last more than three months if the subject looks at the colorful gratings for extended periods of time. So if you don't see the effect after a few minutes of looking back and forth, exercise caution before trying it for longer.

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