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L2-Proficiency-Dependent Laterality Shift in Structural Connectivity of Brain Language Pathways

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L2-Proficiency-Dependent Laterality Shift in Structural Connectivity of Brain Language Pathways. / Xiang, Huadong; van Leeuwen, Tessa Marije; Dediu, Dan; Roberts, Leah; Norris, David G; Hagoort, Peter.

In: Brain Connectivity, Vol. 5, No. 6, 08.2015, p. 349-61.

Research output: Contribution to journalArticle

Harvard

Xiang, H, van Leeuwen, TM, Dediu, D, Roberts, L, Norris, DG & Hagoort, P 2015, 'L2-Proficiency-Dependent Laterality Shift in Structural Connectivity of Brain Language Pathways', Brain Connectivity, vol. 5, no. 6, pp. 349-61. https://doi.org/10.1089/brain.2013.0199

APA

Xiang, H., van Leeuwen, T. M., Dediu, D., Roberts, L., Norris, D. G., & Hagoort, P. (2015). L2-Proficiency-Dependent Laterality Shift in Structural Connectivity of Brain Language Pathways. Brain Connectivity, 5(6), 349-61. https://doi.org/10.1089/brain.2013.0199

Vancouver

Xiang H, van Leeuwen TM, Dediu D, Roberts L, Norris DG, Hagoort P. L2-Proficiency-Dependent Laterality Shift in Structural Connectivity of Brain Language Pathways. Brain Connectivity. 2015 Aug;5(6):349-61. https://doi.org/10.1089/brain.2013.0199

Author

Xiang, Huadong ; van Leeuwen, Tessa Marije ; Dediu, Dan ; Roberts, Leah ; Norris, David G ; Hagoort, Peter. / L2-Proficiency-Dependent Laterality Shift in Structural Connectivity of Brain Language Pathways. In: Brain Connectivity. 2015 ; Vol. 5, No. 6. pp. 349-61.

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@article{55bd712606374627a282d635e2828e7b,
title = "L2-Proficiency-Dependent Laterality Shift in Structural Connectivity of Brain Language Pathways",
abstract = "Diffusion tensor imaging (DTI) and a longitudinal language learning approach were applied to investigate the relationship between the achieved second language (L2) proficiency during L2 learning and the reorganization of structural connectivity between core language areas. Language proficiency tests and DTI scans were obtained from German students before and after they completed an intensive 6-week course of the Dutch language. In the initial learning stage, with increasing L2 proficiency, the hemispheric dominance of the Brodmann area (BA) 6-temporal pathway (mainly along the arcuate fasciculus) shifted from the left to the right hemisphere. With further increased proficiency, however, lateralization dominance was again found in the left BA6-temporal pathway. This result is consistent with reports in the literature that imply a stronger involvement of the right hemisphere in L2 processing especially for less proficient L2 speakers. This is the first time that an L2 proficiency-dependent laterality shift in the structural connectivity of language pathways during L2 acquisition has been observed to shift from left to right and back to left hemisphere dominance with increasing L2 proficiency. The authors additionally find that changes in fractional anisotropy values after the course are related to the time elapsed between the two scans. The results suggest that structural connectivity in (at least part of) the perisylvian language network may be subject to fast dynamic changes following language learning.",
author = "Huadong Xiang and {van Leeuwen}, {Tessa Marije} and Dan Dediu and Leah Roberts and Norris, {David G} and Peter Hagoort",
year = "2015",
month = "8",
doi = "10.1089/brain.2013.0199",
language = "English",
volume = "5",
pages = "349--61",
journal = "Brain Connectivity",
issn = "2158-0022",
publisher = "Mary Ann Liebert Inc.",
number = "6",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - L2-Proficiency-Dependent Laterality Shift in Structural Connectivity of Brain Language Pathways

AU - Xiang, Huadong

AU - van Leeuwen, Tessa Marije

AU - Dediu, Dan

AU - Roberts, Leah

AU - Norris, David G

AU - Hagoort, Peter

PY - 2015/8

Y1 - 2015/8

N2 - Diffusion tensor imaging (DTI) and a longitudinal language learning approach were applied to investigate the relationship between the achieved second language (L2) proficiency during L2 learning and the reorganization of structural connectivity between core language areas. Language proficiency tests and DTI scans were obtained from German students before and after they completed an intensive 6-week course of the Dutch language. In the initial learning stage, with increasing L2 proficiency, the hemispheric dominance of the Brodmann area (BA) 6-temporal pathway (mainly along the arcuate fasciculus) shifted from the left to the right hemisphere. With further increased proficiency, however, lateralization dominance was again found in the left BA6-temporal pathway. This result is consistent with reports in the literature that imply a stronger involvement of the right hemisphere in L2 processing especially for less proficient L2 speakers. This is the first time that an L2 proficiency-dependent laterality shift in the structural connectivity of language pathways during L2 acquisition has been observed to shift from left to right and back to left hemisphere dominance with increasing L2 proficiency. The authors additionally find that changes in fractional anisotropy values after the course are related to the time elapsed between the two scans. The results suggest that structural connectivity in (at least part of) the perisylvian language network may be subject to fast dynamic changes following language learning.

AB - Diffusion tensor imaging (DTI) and a longitudinal language learning approach were applied to investigate the relationship between the achieved second language (L2) proficiency during L2 learning and the reorganization of structural connectivity between core language areas. Language proficiency tests and DTI scans were obtained from German students before and after they completed an intensive 6-week course of the Dutch language. In the initial learning stage, with increasing L2 proficiency, the hemispheric dominance of the Brodmann area (BA) 6-temporal pathway (mainly along the arcuate fasciculus) shifted from the left to the right hemisphere. With further increased proficiency, however, lateralization dominance was again found in the left BA6-temporal pathway. This result is consistent with reports in the literature that imply a stronger involvement of the right hemisphere in L2 processing especially for less proficient L2 speakers. This is the first time that an L2 proficiency-dependent laterality shift in the structural connectivity of language pathways during L2 acquisition has been observed to shift from left to right and back to left hemisphere dominance with increasing L2 proficiency. The authors additionally find that changes in fractional anisotropy values after the course are related to the time elapsed between the two scans. The results suggest that structural connectivity in (at least part of) the perisylvian language network may be subject to fast dynamic changes following language learning.

U2 - 10.1089/brain.2013.0199

DO - 10.1089/brain.2013.0199

M3 - Article

VL - 5

SP - 349

EP - 361

JO - Brain Connectivity

T2 - Brain Connectivity

JF - Brain Connectivity

SN - 2158-0022

IS - 6

ER -