Visual speech differentially modulates beta, theta, and high gamma bands in auditory cortex.

ABSTRACT: Speech perception is a central component of social communication. Although principally an auditory process, accurate speech perception in everyday settings is supported by meaningful information extracted from visual cues. Visual speech modulates activity in cortical areas subserving auditory speech perception including the superior temporal gyrus (STG). However, it is unknown whether visual modulation of auditory processing is a unitary phenomenon or, rather, consists of multiple functionally distinct processes. To explore this question, we examined neural responses to audiovisual speech measured from intracranially implanted electrodes in 21 patients with epilepsy. We found that visual speech modulated auditory processes in the STG in multiple ways, eliciting temporally and spatially dis

SUBMITTER: Karthik G 

PROVIDER: S-EPMC8630510 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature