illusory yellow drawn with blue and black penspic.twitter.com/axgVv7XQNZ
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Thank you. Conclusion: All people see this illusion (n=5) :)
Same for me, I don't see a yellow in both pictures. But at least with spirals, I can sort of see it in the inner spirals. For the top stripe picture I don't really see even a hint of yellow
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