Semantic flow and its relation to controlled semantic retrieval deficits in the narrative production of people with aphasia.

ABSTRACT: Aphasia has had a profound influence on our understanding of how language is instantiated within the human brain. Historically, aphasia has yielded an in vivo model for elucidating the effects of impaired lexical-semantic access on language comprehension and production. Aphasiology has focused intensively on single word dissociations. Yet, less is known about the integrity of combinatorial semantic processes required to construct well-formed narratives. Here we addressed the question of how controlled lexical-semantic retrieval deficits (a hallmark of aphasia) might compound over the course of longer narratives. We specifically examined word-by-word flow of taxonomic vs. thematic semantic distance in the storytelling narratives of individuals with chronic post-stroke aphasia (n = 259) rela

SUBMITTER: Litovsky CP 

PROVIDER: S-EPMC9978996 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature