The background or color surrounding an object affects the apparent perceived size of an object as this optical illusion shows.The problem with the gene pool is that there is no lifeguard.
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Block Contrast Optical Illusion

Which block is larger?

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Perception is not always reality, as demonstrated in this optical illusion.


Scroll down for the answer and explanation.




They are the same size. Are you surprised?


The background or color surrounding an object affects its perceived size. A partial explanation for this optical illusion is that the framed object seems to grab more attention and therefore seems larger.

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See 3d Pictures that just jump off the page. Stereograms are fun and enjoyable.
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