Ongoing slow oscillatory phase modulates speech intelligibility in cooperation with motor cortical activity.

ABSTRACT: Neural oscillation is attracting attention as an underlying mechanism for speech recognition. Speech intelligibility is enhanced by the synchronization of speech rhythms and slow neural oscillation, which is typically observed as human scalp electroencephalography (EEG). In addition to the effect of neural oscillation, it has been proposed that speech recognition is enhanced by the identification of a speaker's motor signals, which are used for speech production. To verify the relationship between the effect of neural oscillation and motor cortical activity, we measured scalp EEG, and simultaneous EEG and functional magnetic resonance imaging (fMRI) during a speech recognition task in which participants were required to recognize spoken words embedded in noise sound. We proposed an index t

SUBMITTER: Onojima T 

PROVIDER: S-EPMC5554004 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature