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The McGurk Effect

TB

Tara Burress

Transcript

Background Information

  • The McGurk Effect was first described in 1976 by Harry McGurk and John MacDonald.
  • This effect was discovered by accident when McGurk and his research assistant, MacDonald, were conducting a study on how infants perceive language at different developmental stages.
  • They asked a technician to dub a video with audio different from the one spoken.
  • When the video was played back, both researchers heard a third sound rather than the one spoken or mouthed in the video.
  • Knowledge about the McGurk Effect seems to have little effect on one's perception of it.
  • This is different from certain optical illusions, which break down once one 'sees through' them.
  • The McGurk effect is a perceptual phenomenon that demonstrates an interaction between hearing and vision in speech perception.
  • The illusion occurs when the audio of one sound is paired with the visuals of another sound, leading to the perception of a third sound.
  • The visual information someone gets from seeing a person speak changes the way they hear the sound.
  • If a person is getting poor quality auditory information but good quality visual information, they may be more likely to experience the McGurk effect.

Materials

Procedures

Bibliography

  • Camera
  • Voice Recorder
  • Computer
  • Video Editing/ Movie Making Software
  • Take two videos, one where you are repeatedly saying "bababa" and another one where you are saying "vavava".
  • Upload them into movie software.
  • Voice over the "vavava" video, with the "bababa" audio.
  • Edit all the footage/audio together.
  • Add in bloopers.
  • Upload finished video to YouTube.

The McGurk Effect Video

  • http://www.youtube.com (Try The McGurk Effect! - Horizon: Is Seeing Believing? - BBC Two)
  • http://en.wikipedia.org/wiki/McGurk_effect

The McGurk Effect

By: Tara Burress

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