The McGurk effect is a perceptual phenomenon in which the auditory component of one sound is paired with the visual component of a person mouthing a different sound, causing the listener to perceive a third sound that matches neither input on its own. It demonstrates that speech perception is not purely auditory, since the visual information a person gets from watching someone speak changes what they hear.
Facts
Core ClaimSourced to the subject's own accountWhen the auditory component of one speech sound is paired with the visual lip-movement component of a different speech sound, most people perceive a third, blended sound, showing that vision and hearing are integrated in speech perception. 1 First Described YearSourced to the subject's own account Classification
Type of PhenomenonSourced to the subject's own account Connections
Sources
1. McGurk Effect (Wikipedia)
WikipediaLead section, paragraph 1
The McGurk effect is a perceptual phenomenon that demonstrates an interaction between hearing and vision in speech perception. The illusion occurs when the auditory component of one sound is paired with the visual component of another sound, leading to the perception of a third sound.
Background section, paragraph 1
It was first described in 1976 in a paper by Harry McGurk and John MacDonald, titled "Hearing Lips and Seeing Voices" in Nature (23 December 1976).
lead section, phenomenon-kind classification
The McGurk effect is a perceptual phenomenon in which the auditory component of one sound is paired with the visual component of a person mouthing a different sound, causing the listener to perceive a third sound that matches neither input on its own.
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