Only Those With A High IQ Can Pass This Optical Illusion Quiz
What happens when you stare at the cross in the center of this image?

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The Troxler effect is an optical illusion where, by fixating on a central point, the image’s background appears to disappear completely. In this case, the background colors in the image appear to fade to grey.
What happens when you stare at the cross in the center of this image?
- The background turns black
- The background turns yellow
- Nothing happens
- All the colors disappear
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