A hierarchy of linguistic predictions during natural language comprehension.

ABSTRACT: Understanding spoken language requires transforming ambiguous acoustic streams into a hierarchy of representations, from phonemes to meaning. It has been suggested that the brain uses prediction to guide the interpretation of incoming input. However, the role of prediction in language processing remains disputed, with disagreement about both the ubiquity and representational nature of predictions. Here, we address both issues by analyzing brain recordings of participants listening to audiobooks, and using a deep neural network (GPT-2) to precisely quantify contextual predictions. First, we establish that brain responses to words are modulated by ubiquitous predictions. Next, we disentangle model-based predictions into distinct dimensions, revealing dissociable neural signatures of predicti

SUBMITTER: Heilbron M 

PROVIDER: S-EPMC9371745 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature