Grouping By Contrast - Intro
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Uploaded by illusionsciences on May 15, 2011
A visual Illusion presented at the Best Illusion of the Year contest in 2011. Four disks modulate from light to dark and back again. The way the disks are perceived to group depends upon the background-- A new Gestalt Psychology demonstration.
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THIS IS OBVIOUS, because you have choosen the background "negative" colors for the disks, and splitted them in half vertically. From that moment, the disks will be grouped not by color, but because of a sort of "pop out" effect (yellow disk on black background, black disk on yellow background), which is possible JUST in that background-color condition!
Would it happen again if you change the background color with anything other than yellow and black? I don't think so.
Protozoo79 4 months ago