If you look around in the neighbouring figure you will notice the appearance and disappearance of black dots at the crossings.
Even though this figure looks similar to the Hermann-Grid, it is markedly more vivid. Furthermore, the effect is probably caused by different mechanisms than those causing the Hermann-Grid effect.
1993: First demonstrated by JR Bergen at the ARVO, in a weaker variant
1994: Re-discovered by Bernd Lingelbach’s wife Elke
1995: Demonstrated at the Tübingen ECVP meeting (Schrauf M, Lingelbach B, Lingelbach E & Wist ER. The Hermann grid and the scintillation effect. Perception 24: suppl, 88–89)
1997: Schrauf M, Lingelbach B & Wist E. The scintillating grid illusion. Vision Res 37:1033–1038
2001: Invoked to explain Florida’s election problems (“Count the black dots, recount to confirm…” ;-)

4 comments:
This is a cool blog! You have a new fan. I Will definitly be back to check out more illusions.
I actually see white ones flashing inside the black ones
like your site ! Its very well !
Nice layout. But i didnt find information for me that i try to find on your website. But thanks you in any way!
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