Question: Directions for Summary: A paragraph is followed by four options which have summarized the passage in their own way. Pick the option that best summarizes the passage:
McGurk and MacDonald (1976) reported a powerful multisensory illusion occurring with audio-visual speech. They recorded a voice articulating a consonant 'ba-ba-ba' and dubbed it with a face articulating another consonant 'ga-ga-ga'. Even though the acoustic speech signal was well recognized alone, it was heard as another consonant after dubbing with incongruent visual speech i.e., 'da-da-da'. The illusion, termed as the McGurk effect, has been replicated many times, and it has sparked an abundance of research. The reason for the great impact is that this is a striking demonstration of multisensory integration, where that auditory and visual information is merged into a unified, integrated percept.
The paragraphs talks about multisensory integration, where that auditory and visual information is merged into a unified, integrated percept.
Options (d) best captures the essence of the passage.
Option (a) is not true. McGurk effect takes place even with good audio quality.
Option (b): McGurk effect is not about confusion but unification.
Option (c) does not explain what McGurk experiment is.
Hence, option (d).