To my eyes pink dots seem to disappear...

I have a headache now :P

Its weird how after time the effect starts doing different things

A rotating green dot... The pink ones have disappeared..
Cool stuff :)

i see a headache.

This isn't an optical illusions this is just one big fraud. Check the image... it's a animated gif file. This way you can make an optical illusions which shows a complete star wars movie :-).

Timon

Sorry, wrong movie...

Really neat, Ivan!

My brain tries to ignore the afterimage, even though it's not really afterimage.

Curse my weak brain I don't want to see a a rotating green dot. I want to see a circle of purple dots with one rotating, but no matter how hard I try I cannot control it.

command me master Ivan ...

Sure, the dot "looks" green as it disappears, but there's more.

At least to my eyes, I see random single or groups of dots that completely disappear! Very weird. Once I look directly at them, they show up.

And I'll I've had is orange juice this morning, I swear.

Indeed, the green dot is animated. But you have not stared at the cross long enough, or you did so from too far away:: the pink dots disappearing effect IS an optical illusion

A rather fascinating website called '55 Optical Illusions & Visual Phenomena' can be found here: http://www.michaelbach.de/ot/index.html
Cheers, Colin.

You are getting sleepy....

When you focus on the plus sign in the middle, you think there's a green dot rotating around it. But in fact, there is no green dot at all. It's only the pink dot that disapear. If you focus on a pink dot, you'll see that it's grey when the dot is not there, not green.

I can't explain the green dot that doesn't exist, but as for the pink dots: what apparently happens, is your peripheral vision ignores things that aren't moving after a short time. This is why peripheral vision is so acute for what matters (seeing something coming in the corner of your eye.) Apparently, because we "tune out" what's already there, it helps us spot things on the approach (I.E., predators, in nature.)

I see a big pair of tits right in the middle. I see nothing else.

Becomes green then disappears... cool stuff.

New. Know.

now I have some holes in my screen...

I was looking for this illusion and finally googled upon it here at creativebits. I attended a recent NAPP seminar (Photoshop for photographers) given by Ben Willmore who does a column in the photoshopuser magazine. Ben used this illusion to show how the eye can see only red, green, and blue ... it's the brain that puts the colors together to form the millions of shades in betweeen. So ... staring at the purple dot yields purple (the brain is working) but staring at cross allows you to see only one primary color contained in that purple dot ... the green color. I don't remember (or understand) why you wouldn't see just blue or just red ... but I do remember the illusion had to have a gray background to neutralize(?) the eyes.

Eye Illusions are awesome