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The passage given below is followed by four alternate summaries. Choose the option that best captures the essence of 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 main points of the paragraph are:
1. A multisensory illusion, dubbing a different visual cue to audio, makes the subject perceive a different sound. (Important point)
2. This illusion is called McGurk effect. (Important point. Related to 1)
3. An impactful subject of research as it demonstrates multisensory integration. (Secondary point. 1 and 2 can stand without this point)
Option A: Covers 1 and 2. Hence, a plausible option.
Option B: It distorts what the author is trying to say. It draws a conclusion out of the results of the study instead of paraphrasing the passage.
Option C: Option C covers only 3. It does not mention 1 and hence is not a good summary.
Option D: Mentions only 1. Not an apt summary.
Hence, the answer is Option A.
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