RT info:eu-repo/semantics/article
T1 Exploring the temporal dynamics of speech production with EEG and group ICA.
A1 Barber Friend, Horacio Ángel
A1 Janssen, Niels
A1 Meij, Maartje van der
A1 López Pérez, Pedro Javier
A2 Psicología CognitivaSocial y Organizacional
A2 IUNEITB
AB Speech production is a complex skill whose neural implementation relies on a large number ofdiferent regions in the brain. How neural activity in these diferent regions varies as a function oftime during the production of speech remains poorly understood. Previous MEG studies on this topichave concluded that activity proceeds from posterior to anterior regions of the brain in a sequentialmanner. Here we tested this claim using the EEG technique. Specifcally, participants performed apicture naming task while their naming latencies and scalp potentials were recorded. We performedgroup temporal Independent Component Analysis (group tICA) to obtain temporally independentcomponent timecourses and their corresponding topographic maps. We identifed ffteen componentswhose estimated neural sources were located in various areas of the brain. The trial-by-trial componenttimecourses were predictive of the naming latency, implying their involvement in the task. Crucially,we computed the degree of concurrent activity of each component timecourse to test whether activitywas sequential or parallel. Our results revealed that these ffteen distinct neural sources exhibit largelyconcurrent activity during speech production. These results suggest that speech production relies onneural activity that takes place in parallel networks of distributed neural sources.
YR 2020
FD 2020
LK http://riull.ull.es/xmlui/handle/915/35397
UL http://riull.ull.es/xmlui/handle/915/35397
LA en
NO 6-	Janssen, N., van der Meij, M., López-Pérez, P.J., & Barber, H.A. (2020). Exploring the temporal dynamics of speech production with EEG and group ICA. Scientific Reports, 10: 3667. https://doi.org/10.1038/s41598-020-60301-1 https://www.nature.com/articles/s41598-020-60301-1
DS Repositorio institucional de la Universidad de La Laguna
RD 20-may-2024