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http://hdl.handle.net/2445/193742
Title: | Differential activation of a frontoparietal network explains population-level differences in statistical learning from speech |
Author: | Orpella, Joan Assaneo, M. Florencia Ripollés, Pablo Noejovich, Laura López-Barroso, Diana Diego Balaguer, Ruth de Poeppel, D. |
Keywords: | Parla Aprenentatge Diferències individuals Xarxes neuronals (Neurobiologia) Speech Learning Individual differences Neural networks (Neurobiology) |
Issue Date: | 6-Jul-2022 |
Publisher: | Public Library of Science (PLoS) |
Abstract: | People of all ages display the ability to detect and learn from patterns in seemingly random stimuli. Referred to as statistical learning (SL), this process is particularly critical when learning a spoken language, helping in the identification of discrete words within a spoken phrase. Here, by considering individual differences in speech auditory-motor synchronization, we demonstrate that recruitment of a specific neural network supports behavioral differences in SL from speech. While independent component analysis (ICA) of fMRI data revealed that a network of auditory and superior pre/motor regions is universally activated in the process of learning, a frontoparietal network is additionally and selectively engaged by only some individuals (high auditory-motor synchronizers). Importantly, activation of this frontoparietal network is related to a boost in learning performance, and interference with this network via articulatory suppression (AS; i.e., producing irrelevant speech during learning) normalizes performance across the entire sample. Our work provides novel insights on SL from speech and reconciles previous contrasting findings. These findings also highlight a more general need to factor in fundamental individual differences for a precise characterization of cognitive phenomena. |
Note: | Reproducció del document publicat a: https://doi.org/10.1371/journal.pbio.3001712 |
It is part of: | PLoS Biology, 2022, vol. 20, num. 7, p. e3001712 |
URI: | http://hdl.handle.net/2445/193742 |
Related resource: | https://doi.org/10.1371/journal.pbio.3001712 |
ISSN: | 1544-9173 |
Appears in Collections: | Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació) Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL)) |
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