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originally posted by: Mandroid7
If it really lasts that long , that's scary.
Reminds me of this trippy vid..effects only lasts for a few seconds
Producing the effect
The effect is inducted by looking at a test image similar to that on the left. It contains oppositely oriented gratings of lines, horizontal and vertical. Next, the subject stares alternately at two induction images similar to the ones directly beneath the top image. One image should show one orientation of grating (here horizontal) with a colored background (red) and the other should show the other orientation of grating (here vertical) with a different, preferably oppositely colored background (green). Each image should be gazed at by the subject for several seconds at a time, and the two images should be gazed at for a total of several minutes for the effect to become visible. The subject should stare approximately at the center of each image, allowing the eyes to move around a little. After several minutes, the subject should look back to the test image; the gratings should appear tinted by the opposite color to that of the induction gratings (i.e., horizontal should appear greenish and vertical pinkish).
originally posted by: Aldakoopa
a reply to: grubblesnert
......." Kinda like you don't look down the barrel of a gun to see if it's loaded, right? "