Eyes in the soundSourced
The mouth you see can change the syllable you hear
In the McGurk effect, a mismatch between spoken audio and visible mouth movements can produce a different perceived syllable. A familiar example pairs a ba sound with ga-like lips, which some listeners hear as da. Vision can become part of what seems to be hearing.
Listening is not always an ears-only task.
Summary / translation: Unbubly · CC BY-SA 4.0
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McGurk effect · Wikimedia contributors
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-10-05