Auditory, Science, Visual

Hear My Voice, Read My Lips

An interesting study [PDF] conducted by the School of Communication at Northwest University on the confusion that can arise if we watch someones lips making one sound and hear a different sound. This problem integrating the visual cues and the auditory cues is called the McGurk effect (try it outbackground ).  The study found that children with learning difficulties were effected differently than those without problems. This suggests some underlying difference in the brain relating to how visual and sound cues are combined.