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A Listener's Brain can Predict a Speaker's Words: Research
Using an MRI scanner, the researchers have been able to actually see this split-second brain activity.
"We had to figure out a way to catch the brain doing something so fast that it happens literally between spoken syllables," said Michael Tanenhaus, the Beverly Petterson Bishop and Charles W. Bishop Professor.
The researchers focused on a tiny part of the brain called 'V5,' which is known to be activated when a person sees motion.
The idea was to teach undergraduates a set of invented words, some of which meant 'movement,' and then to watch and see if the V5 area became activated when the subject heard words that sounded similar to the ones that meant 'movement.'
For that, the researchers had to create a set of words that had similar beginning syllables, but with different ending syllables and distinct meanings-one of which meant motion of the sort that would activate the V5 area.
The team created a computer program that showed irregular shapes and gave the shapes specific names, like "goki." They also created new verb words. Some, like "biduko" meant "the shape will move across the screen," whereas some, like "biduka," meant the shape would just change color.
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