Original find.Basically, as the faces flash, certain features get distorted by your brain, and the amount of distortion depends on how much that feature deviates from the rest in the set. In other words, someone with slightly larger eyes gets perceived by you as having huge eyes. Go ahead and pause the video and click through it; the faces are pretty much normal faces, so the distortion really is an illusion.
Xbone Stormsurgezz