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Really cool optical illusion (Original Post) 1monster Nov 2012 OP
??? agracie Nov 2012 #1
Don't the yellow dots look like they're moving to you? cyberswede Nov 2012 #2
Aha !!! Yes. n/t agracie Nov 2012 #3
Stare at the yellow balls for a minute ashling Nov 2012 #4
I too see the purple dots..but they are very fleeting angstlessk Nov 2012 #5
ok.. How come the circle of dots you focus on annabanana Nov 2012 #6
I believe it is called simultaneous contrast. applegrove Nov 2012 #7

ashling

(25,771 posts)
4. Stare at the yellow balls for a minute
Tue Nov 20, 2012, 07:09 PM
Nov 2012

the focus on the purple area around them .... you start to see purple dots

annabanana

(52,805 posts)
6. ok.. How come the circle of dots you focus on
Tue Nov 20, 2012, 09:05 PM
Nov 2012

stay still.. and the others stop spinning after a second?

urg

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