Good grief. This demonstration of the colour-dependent Fraser-Wilcox illusion by @AkiyoshiKitaoka is horrific
http://journals.sagepub.com/doi/pdf/10.1068/p7706 …pic.twitter.com/fghTZmdUez
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Thank you. With that advice, I'll leave the still image as it is. But in future, I'll be aware of this important issue.
I made a preliminary experiment using myself (unpublished). Flickering the image with a particular frequency induced dizziness and nausea.
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