Causes Of Change Blindness

Change blindness is a perceptual phenomenon that occurs when a change in a visual stimulus is introduced and the observer does not notice it.
Change Blindness demonstrates why we often fail to notice major changes as there are a number of factors that play a role: focused attention and limited resources. We can all really, only focus on one thing at any given time, so it is that one thing that we pay attention to in great detail. As a result, large volumes of information in the world around us simply pass by our awareness because we lack the resources to attend to it. Humans would see the changes as they have known from past experiences that changes that occur in real life are usually easy to see.