According to Mehr news agency, citing Interesting Engineering, MIT neuroscience researchers have identified several areas of the brain that are responsible for language processing using fMRI.
Detecting specific neural activity in these regions is difficult because fMRI, which monitors blood pressure changes, does not have the high resolution needed to show neuronal activity.
Now, using a more precise method that involves recording electrical activity directly from the brain, the researchers have identified different clusters of neurons that appear to process different amounts of linguistic content.
According to the researchers, the time intervals reflect the different activities of each group of neurons.
Clusters of neurons with shorter time windows analyze the meaning of individual words, and longer windows interpret the more complex meanings that arise when words are put together.
Olina Fedronko, an assistant professor of neuroscience at MIT, says: This is the first time we have seen obvious heterogeneity in the language network. In some fMRI experiments, these brain regions all look the same, but this is a huge, sprawling network, so there must be some structure. For the first time, it was determined that there is a structure in this field, but the different neuronal clusters are spatially intermingled, so this distinction cannot be seen with the help of fMRI.
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