Does the center of the disk collide with the center of the ring? You need to fixate at the small yellow dot.
One may perceive that the disk is not aligned at the center of the ring at the time of the
collision, although
physically it is. Hence, the perceived location of the objects at the time of collision is
affected by their subsequent positions.
This phenomenon is very similar to the flash-lag effect, in which the location of a moving object is
perceived as dislocated in the direction of motion. However, this illusion can not be explained in terms of
motion extrapolation, difference in latencies, or interpolation, all of which emphasize the differences
in processing stationary and moving objects.
To view the slow version click here.
Fixate at the small white square,
Can you see which of the four patches is different from the others?
Similar (and related) mis-binding phenomena:
http://www.klab.caltech.edu/~farshadm/demo