Spatiotemporal dynamics characterise spectral connectivity profiles of continuous speaking and listening.

ABSTRACT: Speech production and perception are fundamental processes of human cognition that both rely on intricate processing mechanisms that are still poorly understood. Here, we study these processes by using magnetoencephalography (MEG) to comprehensively map connectivity of regional brain activity within the brain and to the speech envelope during continuous speaking and listening. Our results reveal not only a partly shared neural substrate for both processes but also a dissociation in space, delay, and frequency. Neural activity in motor and frontal areas is coupled to succeeding speech in delta band (1 to 3 Hz), whereas coupling in the theta range follows speech in temporal areas during speaking. Neural connectivity results showed a separation of bottom-up and top-down signalling in distinct

SUBMITTER: Abbasi O 

PROVIDER: S-EPMC12716320 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature