Incongruence of grammatical subjects activates brain regions involved in perspective taking in a sentence-sentence verification task

Various sentences can describe the same event from different perspectives (e.g., “John kicked Mike.” and “Mike was kicked by John.”). Humans can easily verify propositional equivalence of these sentences, but the underlying brain mechanisms are unclear. The present study examined whether the perspective taking system is involved in the verification of propositional equivalence between two sentences having different grammatical subjects, using a...