Are these items moving, or staying perfectly still?

One teacher said, "I felt like they were all moving...but slowly, kind of like, they were breathing."

The pictures attached are used to test the level of stress a person can handle. The slower the pictures move, the better your ability of handling stress.

Alleged criminals that were tested see them spinning around madly; however, senior citizens and kids see them standing still. None of these images are animated - they are perfectly still.