ArticleJournal of psycholinguistic research2021
Age of Acquisition of Mandarin Modulates Cortical Thickness in High-Proficient Cantonese-Mandarin Bidialectals.
Article in Journal of psycholinguistic research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- The Effect of AoA-L2 on Functional Network Dynamics in Bilinguals.Brain topography · 2026Article
- Brain-structural differences underlying dialect competence in the bilingual network.Scientific reports · 2026Article
- Multiscale neural features of tonal bilingualism: linking regional differences in brain network degree centrality to neurotransmitter-gene signatures in Bai-Mandarin bilinguals.Scientific reports · 2026Article
- Tip-of-the-pen states in Mandarin handwriting: The effect of brief non-target language exposure.Memory & cognition · 2025Article
- Does Diglossia Impact Brain Structure? Data from Swiss German Early Diglossic Speakers.Brain sciences · 2024Article
- Increased Gray Matter Volume Induced by Chinese Language Acquisition in Adult Alphabetic Language Speakers.Frontiers in psychology · 2022Article
Corrections and comments
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Authors and funding
13 authors at 6 institutions in 2 countries.
Funding
Abstract
Previous studies showed that the onset age of second language acquisition (AoA-L2) can modulate brain structure of bilinguals. However, the underlying mechanism of anatomical plasticity induced by AoA-L2 is still a question in debate. In order to explore the issue, we recruited two groups of native Cantonese-Mandarin speakers, the early group began to speak in Mandarin at about 3.5 and the late group at about 6.5 years old. In addition, the early group had earlier experience in reading Chinese characters than the late group did. Through estimating the cortical thickness (CT), we found that (1) compared with the late group, the early group had thicker CT in the lateral occipital region, left middle temporal gyrus, and left parahippocampal region, which are all involved in visuospatial processing, probably reflecting the effect induced by the earlier or later experiences in processing the characters of Chinese for the two groups; and (2) compared with the late group, the early group had thicker CT in left superior parietal region, which is believed to be involved in language switching, maybe for the early group had the earlier experience in switching back and forth between Cantonese and Mandarin and therefore recruited the executive control network earlier. Our findings revealed the effects of the AoA-L2 in oral language acquisition as well as in written language acquisition as the main determinants of bilingual language structural representation in human brain.
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