Why You Miss Big Changes Right Before Your Eyes | NOVA | Inside NOVA:

Change Blindness: How can we miss big visual changes that happen right before our eyes? Psychologists who study the fascinating phenomenon of change blindness know that merely looking at something is not the same as actively paying attention to it. As the demonstration in this video shows, people can be blind to significant changes in a visual scene that are obvious to someone who expects that these changes are going to happen. Visit www.pbs.org/nova/insidenova