In this video, Inside Science explains how we see certain illusions as shifting pictures. Our brain takes a frozen image and begins to fixate on a certain area of the photo. We do this multiple times but when we fixate on one spot for a few milliseconds, we move onto the next area of the photo while our eyes are continuing to remember the last part of the photo that you saw, which is what gives the illusion of movement. Neuroscientists are still not exactly sure what causes our brains to function this way.
https://www.youtube.com/watch?v=kO1kgl0p-Hw&t=41s The video displays the power of the brain and the ways the brain can be tricked into doing things that would usually be out of someone's capabilities Two people were randomly chosen to shot free throws in basketball blind folded and then they took them of and shot them without. The first person missed all 10 blindfolded but was told that they were close or they went in when they didn't but when she took the blindfold off and shot them they were much closer and some actually went in, proving that the brain can be tricked by positivity. This relates to perception because if you tell yourself you can do something or someone is hyping you up into thinking you could do something you and your brain will preform better than with negative attitudes.