Language exposure induced neuroplasticity in the bilingual brain: A follow-up fMRI study

Tu, Liu; Wang, Junjing; Abutalebi, Jubin; Jiang, Bo; Pan, Ximin; Li, Meng; Gao, Wei; Yang, Yong‐Hua; Liang, Bishan; Lü, Zhi; Huang, Ruiwang

doi:10.1016/j.cortex.2014.09.019

Cited by 51 publications

(22 citation statements)

References 49 publications

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“…Notably, it has been also proposed that such control mechanism during bilingual language production is not fixed but adapts with specific types of the bilingual experience [Green and Abutalebi, ]. For instance, Tu et al [] found that reduced L2 exposure for one month resulted in stronger activation in the language control network during L2 sentence production. Recently, Abutalebi and Green [] further pointed out that some key questions that await systematic investigation are which factors of the bilingual experience induce the dynamic change, and how the brain adapts to the demands of bilingual language use.…”

Section: Introductionmentioning

confidence: 99%

Short‐term language switching training tunes the neural correlates of cognitive control in bilingual language production

Kang

et al. 2017

Human Brain Mapping

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The present study investigated how language switching experience would modulate the neural correlates of cognitive control involved in bilingual language production. A group of unbalanced Chinese-English bilinguals undertook an 8-day cued picture naming training during which they named pictures in either of their languages based on visually presented cues. Participants' brain activation was scanned before and after the training in the same task. Behavioral results revealed a significant training effect such that switch costs were reduced after training. fMRI results showed that after training, activation of brain areas associated with cognitive control including the anterior cingulated cortex and the caudate was reduced. Besides, the activation reduction in the left dorsal anterior cingulated cortex positively correlated with the reduction in switch costs in response time and this training effect could be transferred to untrained stimuli. These findings suggest that neural correlates of cognitive control, especially that of the conflict monitoring process, in bilingual language production could be modulated by short-term language switching training. Hum Brain Mapp 38:5859-5870, 2017. © 2017 Wiley Periodicals, Inc.

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Section: Introductionmentioning

confidence: 99%

Short‐term language switching training tunes the neural correlates of cognitive control in bilingual language production

Kang

et al. 2017

Human Brain Mapping

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“…Costa & Sebastian-Galles, 2014; Grady, Luk, Craik, & Bialystok, 2015; Grant, Dennis, & Li, 2014; Hernandez, 2013b; Li, 2013; Onnis, 2013; Stocco, 2013; Tu et al, 2014; Weissberger, Gollan, Bondi, Clark, & Wierenga, 2015). These studies have generally converged on a series of areas that are involved in modulating cognitive control in bilinguals.…”

Section: Introductionmentioning

confidence: 99%

Beyond the bilingual advantage: The potential role of genes and environment on the development of cognitive control

Hernández

Greene

Vaughn

et al. 2015

Journal of Neurolinguistics

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In recent years there has been considerable debate about the presence or absence of a bilingual advantage in tasks that involve cognitive control. Our previous work has established evidence of differences in brain activity between monolinguals and bilinguals in both word learning and in the avoidance of interference during a picture selection task. Recent models of cognitive control have highlighted the importance of a set of neural structures that may show differential tuning due to exposure to two languages. There is also evidence that genetic factors play a role in the availability of dopamine in neural structures involved in cognitive control. Thus, it is important to investigate whether there are interactions effects generating variability in language acquisition when attributed to genetic (e.g., characteristics of dopamine turnover) and environmental (e.g., exposure to two languages) factors. Here preliminary results from genotyping of a sample of bilingual and monolingual individuals are reported. They reveal different distributions in allele frequencies of the DRD2/ANKK1 taq1A polymorphism. These results bring up the possibility that bilinguals may exhibit additional flexibility due to differences in genetic characteristics relative to monolinguals. Future studies should consider genotype as a possible contributing factor to the development of cognitive control across individuals with different language learning histories.

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“…Bilinguals hail from different sociolinguistic environments and vary along key dimensions such as Age of Bilingualism Onset, extents of their L1-L2 Immersion, Usage and Proficiency (Luk & Bialystok, 2013), as well as in Interactional Language Modes (singlelanguage use vs. code-mixing, see Green, 2011. Such differences in bilingual experience are of significance because they have been shown to give rise to meaningful variation in bilingual neurobiology, particularly with respect to the BLC network (e.g., Berken et al, 2016;DeLuca et al, 2019;Perani et al, 1998Perani et al, , 2003Pliatsikas et al, 2017;Tu et al, 2015). Acknowledging this variation, the Adaptive Control (AC) Hypothesis proposes that heterogenous experiences of bilingualism could generate varying language control needs.…”

Section: Bilingual Heterogeneity and Adaptive Bilingual Language Controlmentioning

confidence: 99%

The impact of Relative Language Distance on Bilingual Language Control – a functional imaging study

Ramanujan

2019

Preprint

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Cross-linguistic activation is unavoidable in bilinguals and they require language control to manage it. In this study, it is posited that Relative Language Distance (RLD; the extent of lexical feature-similarity between bilinguals' languages) can affect the extent of cross-linguistic activation and hence influence bilingual language control. This was investigated via an er-fMRI word-translation task on three similar bilingual groups but with varying RLDs: Dutch-English (low-RLD), Hindi-English (intermediate-RLD) and Cantonese-English (high-RLD). Crosslinguistic conflict and the degree of conflict monitoring/control necessary to manage it were expected to increase with decreasing RLD across groups and be appropriately reflected in the activity of conflict monitoring/control neural regions, such as the ACC (anterior cingulate cortex). Analysis revealed a significantly differential ACC response across the groups, reflecting its adaptation to differential conflict monitoring/control demands generated by RLD. The findings provide emerging evidence for RLD as a dimension of bilingualism impacting bilingual language control processes and neurobiology.

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Language exposure induced neuroplasticity in the bilingual brain: A follow-up fMRI study

Cited by 51 publications

References 49 publications

Short‐term language switching training tunes the neural correlates of cognitive control in bilingual language production

Short‐term language switching training tunes the neural correlates of cognitive control in bilingual language production

Beyond the bilingual advantage: The potential role of genes and environment on the development of cognitive control

The impact of Relative Language Distance on Bilingual Language Control – a functional imaging study

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