Processing errors - McGurk effect (external link)

The McGurk effect is named for Harry McGurk, a developmental psychologist from the UK. In this link, you can see how visual information can interfere with audio processing.

To optimize your experience with this link, please follow these instructions. First of all, watch the video in this link with your eyes open. Next, close your eyes and play again. Do not read the text below until you have watched the video with your eyes open and shut! With their eyes open, 98% of people "hear" the actor say "Da Da", which is what your visual processes are telling you. When you close your eyes, you will clearly hear that the actor is actually saying "Ba Ba".