The syntax-lexicon tradeoff in writing
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As speakers turn their thoughts into sentences, they maintain a balance between the complexity of words and syntax. However, it is unclear whether this syntax-lexicon tradeoff is unique to the spoken language production that is under the pressure of rapid online processing. Alternatively, it is possible that the tradeoff is a basic property of language irrespective of the modality of production. This work evaluates the relationship between the complexity of words and syntactic rules in the written language of neurotypical individuals on three different topics. We found that similar to speaking, constructing sentences in writing involves a tradeoff between the complexity of the lexical and syntactic items. We also show that the reduced online processing demands during writing allows for retrieving more complex words at the cost of incorporating simpler syntax. This work further highlights the role of accessibility of the elements of a sentence as the driving force in the emergence of the syntax-lexicon tradeoff.
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