April 12, 2025

Much can be learned about basic aspects of language in the brain from the study of people with aphasia. Theoretical models of the neurobiology of language can also inform the study of language deficits in aphasia. Inspired by our theoretical model of syntax in the brain, we recently identified a double dissociation between damage to the inferior frontal lobe, associated with agrammatic speech deficits, and damage to the posterior temporal lobe, associated with paragrammatic speech deficits (Matchin et al., in press).