Three-year-old Matty was shown a video of an adult uttering ba ba synchronized with the audio of an adult uttering ga ga.When asked what he heard,Matty reported hearing a very different utterance.This result suggests that

Question

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The fact that Matty heard a different utterance suggests that visual cues influenced his perception of the auditory cues. This phenomenon is known as the McGurk effect, where visual information (speakers lip and facial movements) can influence the perception of auditory information. This effect is strongest in younger children (around the age of three) and decreases as they get older. Therefore, option A is the most appropriate answer. Options B, C, and D are incorrect as there is no evidence to suggest that Matty has a hearing problem, lost the ability to discriminate between phonemes, or is not proficient at discriminating phonemes.

Three-Year-Old Matty Was Shown a Video of an Adult Uttering