Vision is more than just seeing (Photo: Nancy L. Murray, Aleena Garner)
Vision is more than just seeing (Photo: Nancy L. Murray, Aleena Garner) - When we learn to associate an auditory stimulus with a visual stimulus, the perception of that visual stimulus changes, but this phenomenon is not well understood. For the first time, the Keller group has now identified a mechanism in the brain that enables auditory information to influence visual representations. The findings provide fundamental insight into the neural basis of multi-sensory disorders. Walk down a street in a crowded city center and you will be bombarded by sensory information - the sight of other passers-by, the sound of their laughter, the smell of that pizza restaurant. Your brain seems to do a remarkable job of making sense of it all. However, it can sometimes be trapped into misinterpreting sensory information, as shown by various illusions. In the McGurk effect for example, the visual information you get when looking at a person speak, changes the way you hear the sound (for example the sound 'ba' might be interpreted for the sound 'ga' when you look at a person's lips).
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