3 ms·
I also experienced this and saw the image a few months ago. That the effect lasts that long is sort of unsettling.
by Houshalter 12y ago
I also experienced this and saw the image a few months ago. That the effect lasts that long is sort of unsettling.
- cypherpunks01 12y agoYep, wikipedia cites a 1975 study "Extremely long-term persistence of the McCollough effect" in saying that the effect can last up to three months in some cases, after prolonged exposure.
- deleted 12y ago[deleted]