L1 and L2 processing in the bilingual brain: A meta-analysis of neuroimaging studies

Liu, Hengshuang; Cao, Fan

doi:10.1016/j.bandl.2016.05.013

Cited by 144 publications

(144 citation statements)

References 112 publications

(121 reference statements)

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“…In accordance with the current study, a recent meta-analysis on neuroimaging data (Liu & Cao, 2016) found that late bilinguals, compared to early bilinguals involve more additional, including bilateral, brain regions in second than first language processing -a finding in line with the initial formulations of the Age of with better performance for processes that are acquired early (auditory linguistic processes). On the other hand, smaller asymmetries are associated with better performance for visual lexical processes that are acquired somewhat later during ontogenesis, and are possibly related to individual differences in maturation of the corpus callosum.…”

Section: Discussionsupporting

confidence: 91%

Language lateralisation measured across linguistic and national boundaries

Hausmann

Brysbaert

Haegen

et al. 2019

Cortex

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The visual half-field technique has been shown to be a reliable and valid neuropsychological measurement of language lateralisation, typically showing higher accuracy and faster correct responses for linguistic stimuli presented in the right visual field (RVF) than left visual field (LVF). The RVF advantage corresponds to the well-known dominance of the left hemisphere (LH) in processing language(s). However, clinical and experimental neuroscientists around the globe use different variations of the visual half-field paradigm, making direct comparisons difficult. The current study used a word/non-word visual half-field paradigm with translingual stimuli. In total, 496 participants from seven European countries were investigated: Belgium (64), England (49), Germany (85), Italy (48), The Netherlands (87), Norway (51), and Switzerland (126), covering six international languages (Dutch, English, French, German, Italian, Norwegian). All language groups revealed a significant RVF/LH advantage in accuracy and reaction times that accounted for up to 26.1% of the total variance in performance. We found some variation in the degree of the RVF/LH advantage across language groups, accounting for a maximum of 3.7% of the total variance in performance. The RVF/LH advantage did not differ between subsamples speaking English, French or German as first or second languages or between monolingual and early/late bi/multilinguals. The findings suggest that the translingual lexical decision task (TLDT) is a simple but reliable measurement of language lateralisation that can be applied clinically and experimentally across linguistic and national boundaries.

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Section: Discussionsupporting

confidence: 91%

Language lateralisation measured across linguistic and national boundaries

Hausmann

Brysbaert

Haegen

et al. 2019

Cortex

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“…Most neuroimaging studies have revealed similar activations in the prefrontal cortex, temporoparietal cortex, and occipitotemporal regions when reading in native and second languages (Buchweitz, Shinkareva, Mason, Mitchell, & Just, 2012;Liu, Hu, Guo, & Peng, 2010;Nakada, Fujii, & Kwee, 2001;Wartenburger et al, 2003), especially at the word level (Briellmann et al, 2004;Cao, Tao, Liu, Perfetti, & Booth, 2013;Kim et al, 2016;Mei et al, 2015b;Nelson, Liu, Fiez, & Perfetti, 2009;Van de Putte, De Baene, Brass, & Duyck, 2017;Videsott et al, 2010;Xue, Dong, Jin, Zhang, & Wang, 2004). Other studies, however, have reported differences in certain regions (Jamal, Piche, Napoliello, Perfetti, & Eden, 2012;H. Liu & Cao, 2016;Y.…”

Section: Introductionmentioning

confidence: 99%

Lexical learning in a new language leads to neural pattern similarity with word reading in native language

Chen

et al. 2018

Human Brain Mapping

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Previous neuroimaging studies have suggested similar neural activations for word reading in native and second languages. However, such similarities were qualitatively determined (i.e., overlapping activation based on traditional univariate activation analysis). In this study, using representational similarity analysis and an artificial language training paradigm, we quantitatively computed cross-language neural pattern similarity to examine the modulatory effect of proficiency in the new language. Twenty-four native Chinese speakers were trained to learn 30 words in a logographic artificial language for 12 days and scanned while performing a semantic decision task after 4-day training and after 12-day training. Results showed that higher proficiency in the new language was associated with higher cross-language pattern similarity in select regions of the reading network.

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“…The middle fusiform region is an orthographically sensitive brain region modulated by literacy (Dehaene et al, 2010) and is also related to the competition processes of bilinguals' two languages (Tan et al, 2011), although we did not find that its microstructural properties (MTV and T1) were correlated with the Stroop effect. Its enhanced development in early bilinguals may have resulted from the need to more efficiently perform orthographic processing in two prints (Liu & Cao, 2016).…”

Section: Discussionmentioning

confidence: 99%

Microstructural plasticity in the bilingual brain

Luo

Kwok

et al. 2019

Preprint

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The human brain has been uniquely equipped with the remarkable ability to acquire more than one language, as in bilingual individuals. Previous neuroimaging studies have indicated that learning a second language (L2) induced neuroplasticity at the macrostructural level. In this study, using the quantitative MRI (qMRI) combined with functional MRI (fMRI) techniques, we quantified the microstructural properties and tested whether second language learning modulates the microstructure in the bilingual brain. We found significant microstructural variations related to age of acquisition of second language in the left inferior frontal region and the left fusiform gyrus that are crucial for resolving lexical competition of bilinguals' two languages. Early second language acquisition contributes to enhance cortical development at the microstructural level. Significant statementThe human brain has been uniquely equipped with a remarkable ability to acquire more than one language, as in bilingual individuals. Previous neuroimaging studies have indicated that learning a second language (L2) induced neuroplasticity at the macrostructural level. In this study, using the quantitative MRI (qMRI) technique we quantified the microstructural properties and tested whether second language learning modulates the microstructure in the bilingual brain. We found a significant microstructural variation related to age of acquisition of second language in the left anterior prefrontal region that is crucial for resolving lexical competition of bilinguals' two languages. Early second language acquisition seems to enhance cortical development at the microstructural level.Keywords bilingualism, quantitative MRI, age of second language acquisition, lexical competition

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L1 and L2 processing in the bilingual brain: A meta-analysis of neuroimaging studies

Cited by 144 publications

References 112 publications

Language lateralisation measured across linguistic and national boundaries

Language lateralisation measured across linguistic and national boundaries

Lexical learning in a new language leads to neural pattern similarity with word reading in native language

Microstructural plasticity in the bilingual brain

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