Beliefs and information that support our prior beliefs also increase the activity of these reward systems. The more I see stuff that verifies what I already think or feel—that 'they are bad and they are good' or that 'we are good and they are bad,' the more dopamine and adrenaline is released into my system, which we now know from our discussion a few minutes ago changes the way I view the world ... It means that I'm going to see certain things and not see others.