The slower the pictures rotate, the better your ability of handling stress: Allegedly, criminals see stress test images moving and spinning around madly, while seniors and children see them still. If you still think that there's a trick here, you may wish to print it (even black and white) and by then you'll be sure that it's a still picture - these are not animated pictures of stress testing.
Look at them again and check your level of stress. The moving picture stress test will do the rest!
I showed these stress test animated pictures to a lot of people and heard many responses, it seems that the average speed for most people is very, very slow rotation. There are 3 handling stress pictures below.
(CLICK THE PICTURE TO ENLARGE IT)
Moving stress test: picture #1: "Flowers" rotate in opposite direction of a flower next to it.
Moving stress test: Picture #2: Clearly, three rotating cylinders in this picture
stress test Picture #3: An odd wave effect is in the picture below.
