Dissociable electrophysiological measures of natural language processing reveal differences in speech comprehension strategy in healthy ageing.

ABSTRACT: Healthy ageing leads to changes in the brain that impact upon sensory and cognitive processing. It is not fully clear how these changes affect the processing of everyday spoken language. Prediction is thought to play an important role in language comprehension, where information about upcoming words is pre-activated across multiple representational levels. However, evidence from electrophysiology suggests differences in how older and younger adults use context-based predictions, particularly at the level of semantic representation. We investigate these differences during natural speech comprehension by presenting older and younger subjects with continuous, narrative speech while recording their electroencephalogram. We use time-lagged linear regression to test how distinct computational me

SUBMITTER: Broderick MP 

PROVIDER: S-EPMC7925601 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature