The McGurk Effect: How Conditioning Affects Perception

How does our conditioning affect our perception.  Watch this video and you will see how you HEAR sounds that are not there.  Our visual cue is that we should hear a certain sound, and so we hear it.  Even if they have switched the audio and aren’t playing it anymore.  

We make assumptions that what we perceive is actually the way it is. However, we might be more truthfully served if we are aware that what we perceive, is only what we believe we perceive.

Watch and listen.  To double check that these guys aren’t fooling us with the video, close your eyes at different parts and just listen.