Results from the research team’s study suggest language is much more complex than we thought. The volunteers were tasked with listening to The Moth Radio Hour, a radio program where people tell emotional stories, while lying in a functional MRI machine. The MRI machine then checked all volunteers’ brain responses to 985 different concepts.
The team mapped the blood flow to 60,000 to 80,000 pea-sized regions across the cerebral cortex. So there was plenty of data to go on, and the study resulted in an effective overview of where spoken concepts had a reaction in the brain. Certain concepts showed up in several areas across the brain. For example, the word “top” appeared both in an area filled with clothing words, as well as in an area that consisted of numbers. Scientists have long since thought that separate chunks of the brain handles different concepts individually. “These data suggest we need to rethink how the brain organizes meaning,” says Stanford University neuroscientist Russell Poldrack to Science News.
But the testing group was relatively small, with a mere seven volunteers there is plenty of room to do a more sizable study. Researchers want to repeat the study with 50 or 100 people from different backgrounds.
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