Hearing Impairment
Experiments have been conducted involving hearing impaired individuals as well as individuals that have had cochlear implants. These individuals tend to weigh visual information from speech more heavily than auditory information. In comparison to normal hearing individuals, this is not different unless there is more than one syllable, such as a word. Regarding the McGurk experiment, responses from cochlear implanted users produced the same responses as normal hearing individuals when an auditory bilabial stimulus is dubbed onto a visual velar stimulus. However, when an auditory dental stimulus is dubbed onto a visual bilabial stimulus, the responses are quite different. The McGurk effect is still present in individuals with impaired hearing or using cochlear implants, although it is quite different in some aspects.
Read more about this topic: McGurk Effect
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