A patient struggles to produce grammatically complex sentences despite understanding spoken language. Which mechanism is most likely impaired in Broca's area when complex sentence formulation is required?

💡 Explanation

Impaired grammatical sentence production in Broca's area typically arises because syntactic working memory is overloaded, causing difficulties in holding and manipulating sentence structures. Therefore, capacity overload explains the production deficit, rather than auditory relay or motor amplification errors, which do not directly affect grammatical encoding.

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