Change blindness

I have dealt with quite a few characteristics of our perception earlier, so as this is one of my favourite areas, how about giving you a new one? Have you ever noticed that slow motion and slow-paced changes are more difficult for us to perceive than faster ones? Our brain is "wired" in a way that it alerts us if there is a rapid change such as a fast-moving object in our environment. It has a very important survival value for us: it warns us if we are in danger.

Just watch this short video done by the Brain Games crew at National Geographic Channel to see how it works. The first part of the video is a test: you can check how attentive you are... LOL