what is the mcgurk effect
The McGurk effect is a perceptual phenomenon which demonstrates an interaction between hearing and vision in speech perception. It suggests that speech perception is multimodal, that is, that it involves information from more than one sensory modality. The McGurk effect is sometimes called the McGurk-MacDonald effect. It was first described in a paper by McGurk and MacDonald (1976). This effect may be experienced when a video of one phoneme's production is dubbed with a sound-recording of a different phoneme being spoken.
The McGurk Effect. The McGurk effect (named after Harry McGurk of McGurk & McDonald, 1976) is a compelling demonstration of how we all use visual speech information. The effect shows that we can't help but integrate visual speech into what we 'hear'. Try the demonstration now, and then read about how the stimuli were made, what the effect means, and how to produce your own McGurk effects. Instructions: You will see and hear a mouth speaking four syllables.