dc.contributor.author | Gurunandan, Kshipra | |
dc.contributor.author | Arnaez-Telleria, Jaione | |
dc.contributor.author | Carreiras, Manuel | |
dc.contributor.author | Paz-Alonso, Pedro M. | |
dc.date.accessioned | 2020-12-18T08:13:03Z | |
dc.date.available | 2020-12-18T08:13:03Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Converging Evidence for Differential Specialization and Plasticity of Language Systems Kshipra Gurunandan, Jaione Arnaez-Telleria, Manuel Carreiras, Pedro M. Paz-Alonso Journal of Neuroscience 9 December 2020, 40 (50) 9715-9724; DOI: 10.1523/JNEUROSCI.0851-20.2020 | es_ES |
dc.identifier.issn | 0270-6474 | |
dc.identifier.uri | http://hdl.handle.net/10810/49161 | |
dc.description | First published November 9, 2020. | es_ES |
dc.description.abstract | Functional specialization and plasticity are fundamental organizing principles of the brain. Since the mid-1800s, certain cognitive
functions have been known to be lateralized, but the provenance and flexibility of hemispheric specialization remain open questions.
Language is a uniquely human phenomenon that requires a delicate balance between neural specialization and plasticity, and
language learning offers the perfect window to study these principles in the human brain. In the current study, we conducted two
separate functional MRI experiments with language learners (male and female), one cross-sectional and one longitudinal, involving
distinct populations and languages, and examined hemispheric lateralization and learning-dependent plasticity of the following
three language systems: reading, speech comprehension, and verbal production. A multipronged analytic approach revealed a highly
consistent pattern of results across the two experiments, showing (1) that in both native and non-native languages, while language
production was left lateralized, lateralization for language comprehension was highly variable across individuals; and (2) that with
increasing non-native language proficiency, reading and speech comprehension displayed substantial changes in hemispheric dominance,
with languages tending to lateralize to opposite hemispheres, while production showed negligible change and remained left
lateralized. These convergent results shed light on the long-standing debate of neural organization of language by establishing robust
principles of lateralization and plasticity of the main language systems. Findings further suggest involvement of the sensorimotor
systems in language lateralization and its plasticity. | es_ES |
dc.description.sponsorship | K.G. eceived support from “la Caixa” Foundation (ID 100010434) through the fellowship LCF/BQ/DI17/11620005 and from the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant 713673. J.A.-T. was supported by Basque Government predoctoral Grant PRE_2015_1_028. M.C. was supported by project APCIN-2015-061-MultiLateral, which is funded by the Spanish Ministry of Economy and Competitiveness (MINECO; Grant FLAG-ERA JTC 2015). P.M.P.-A. was supported by MINECO Grants RYC-2014-15440 and PGC2018-093408-B-I00, and the Neuroscience Research Projects program from the Fundacion Tatiana Perez de Guzman el Bueno. The research was also supported by the Basque Government (Grant BERC 2018–2021) and the Spanish State Research Agency through the Basque Center on Cognition, Brain and Language Severo Ochoa excellence accreditation (Grant SEV-2015-0490). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | The Journal of Neuroscience | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/MC/713673 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/FLAG-ERA JTC 2015 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/RYC-2014-15440 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/PGC2018-093408-B-100 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/SEV-2015-0490 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | bilingualism | es_ES |
dc.subject | comprehension | es_ES |
dc.subject | hemispheric specialization | es_ES |
dc.subject | language learning | es_ES |
dc.subject | laterality | es_ES |
dc.subject | production | es_ES |
dc.title | Converging Evidence for Differential Specialization and Plasticity of Language Systems | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | Copyright © 2020 Gurunandan et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license, which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed. | es_ES |
dc.relation.publisherversion | https://www.jneurosci.org/ | es_ES |
dc.identifier.doi | 10.1523/JNEUROSCI.0851-20.2020 | |