Exploring the ventral white matter language network in bimodal and unimodal bilinguals

Quartarone, Cinzia; Navarrete, Eduardo; Budisavljević, Sanja; Peressotti, Francesca

doi:10.1016/j.bandl.2022.105187

Cited by 1 publication

(6 citation statements)

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“…Consistently with this conclusion Quartarone et al (2022) found in the same group of UBs and BBs a correlation between the proficiency/amount of use of L2 and the microstructural properties of the Inferior Longitudinal fasciculus, a WM ventral tract connecting the occipitals and the temporal lobes.…”

Section: The Left Fat and L2 Productionsupporting

confidence: 76%

“…However, as proficiency increases and L2 lexical activation/selection becomes more and more automatic, frontal involvement is not yet required and changes in this part of the brain progressively disappear, in favor of changes in most posterior parts of the brain (Grundy et al, 2017). Consistent with this idea, Quartarone et al (2022) found for both UBs and BBs a correlation between the proficiency/amount of use of L2 and the microstructural properties of the Inferior Longitudinal fasciculus, a ventral WM tract connecting the occipital and the temporal lobes.…”

Section: The Left Fat and L2 Productionmentioning

confidence: 89%

“…This suggests that highly proficient bilinguals maintain their language output without -or with minimal -interference from the language not in use. Quartarone et al (2022) reported a significant correlation between L1 production and the microstructural properties of the right UF. Parallel to the results reported here, a significant relation was present for BBs, but not for UBs.…”

Section: The Role Of the Fat In L1 Productionmentioning

confidence: 91%

“…Forty-nine bilinguals took part in the study. Data collection was part of a bigger study (see also Quartarone et al, 2022) aimed at investigating structural differences in bilingualism according to modality. They were all right-handed, as verified through the Edinburgh Handedness Inventory Test (Oldfield, 1971) and none had a history of neurological illness.…”

Section: Participantsmentioning

confidence: 99%

“…These effects have been interpreted as the consequence of higher demands of visual-spatial processing related to signed languages, that during comprehension require to constantly and jointly process motion information of the hands producing the sign, and the facial expression of the speaker which conveys relevant syntactic and pragmatic information. Quartarone et al (2022) used Diffusion Magnetic Resonance Imaging Tractography (DTI) to compare the microstructural properties of the ventral WM tracts in UBs and BBs. The results highlighted both similarities and differences between the two groups.…”

Section: Introductionmentioning

confidence: 99%

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The role of the Frontal Aslant tract in bilingual language control

Quartarone¹,

Navarrete²,

Budisavljević³

et al. 2023

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In the present study the microstructural properties of the right and left Frontal Aslant tract (FAT) have been investigated in relation to bilingualism and to language modality by comparing a group of unimodal bilinguals (i.e., bilinguals of two spoken languages) and a group of bimodal bilinguals (i.e., bilinguals of a spoken and a signed language). The microstructural properties of the left FAT correlated with performance in picture naming and semantic fluency in L2 for both groups of bilinguals. The microstructural properties of the both the right and left FAT correlated with picture naming performance in L1 for bimodal bilinguals. No significant correlations were found with performance in a language comprehension task. Overall, the results suggest that the FAT plays a relevant role in language control in bilinguals. While the left FAT seems to be mainly involved in the suppression of the spoken native language (L1) during the use of the spoken or signed L2, both the right and the left FAT seem to be involved in the suppression of sign language (L2) during speaking in L1.

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Section: The Left Fat and L2 Productionsupporting

confidence: 76%

Section: The Left Fat and L2 Productionmentioning

confidence: 89%

Section: The Role Of the Fat In L1 Productionmentioning

confidence: 91%

Section: Participantsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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