The brain dictionary

From Nature: “Where exactly are the words in your head? Scientists have created an interactive map showing which brain areas respond to hearing different words. The map reveals how language is spread throughout the cortex and across both hemispheres, showing groups of words clustered together by meaning. The beautiful interactive model allows us to explore the complex organisation of the enormous dictionaries in our heads.” Explore the brain model for yourself hereRead the paper here.

Interestingly, function words (or logical words) like and, or, if, no, may and any kind of inflectional elements are mostly missing from this map (an exception are, interestingly, numerals). Can we conclude from this finding that LANGUAGE is spread throughout the brain? Or are we seeing a system of concepts that can be expressed by certain content vocabulary items in English? This work is exciting, the visuals are mind-blowing, but is this a finding about language?