Have You Experienced The Celeste McCollough Effect?


Celeste McCollough 1965
Celeste McCollough 1965

The  Celeste McCollough effect is a phenomenon of human visual perception, in which these black & white lines appear coloured,  depending on their orientation.

It is an after-effect, that requires a short a period of induction to produce it.

For example, if you look at the red horizontal lines for a few minutes, and then back to the black and white lines, you will notice an after-effect.

The black-and-white horizontal lines will have a tinge of green and  the black-and-white vertical lines will appear pink. This effect was discovered by Celeste McCollough in 1965.

I love Optical Illusions. I hope you do. My name is Steve Howard. You have been reading the digital circus.

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