Abstract This paper presents an overview of the journal article "Hearing Lips and Seeing Voices" by Harry McGurk and John MacDonald which was published in 1976. This was a groundbreaking study in the subject of verbal communication, that examined the ways in which verbal communication relies on not only auditory input, but visual input as well. The paper shows that this went against the common belief that verbal communication uses sound alone.
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From the Paper "One of the most interesting things revealed about verbal communication during this study is related to the different error rates among the different age groups. During the audio-only portion, preschool children had the highest error percentage, reporting the incorrect syllable nine percent of the time, while older children and adults were correct almost all of the time. However, when presented with conflicting auditory and visual input, the preschool children and school-age children had a much lower error rate than the adults."