The effects of second-language age of acquisition on brain structural networks: A DTI study of high-proficient bilinguals

IF 1.2 3区心理学 Q2 LINGUISTICS

Journal of Neurolinguistics Pub Date : 2023-01-01 DOI:10.1016/j.jneuroling.2023.101155

Ling Zhao , Liu Tu , Meng Zhang , Xiaojin Liu , Ximin Pan , Junjing Wang , Zhi Lu , Meiqi Niu , Shiya Li , Fangyuan Zhou , Qin Wan , Bo Jiang , Ruiwang Huang

引用次数: 0

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二语习得年龄对高熟练双语者脑结构网络的影响

越来越多的出版物关注用大脑网络的视角来研究双语学习和认知。然而，目前还没有研究分析第二语言习得年龄(L2 AoA)对脑白质(WM)结构网络拓扑特性(如富人俱乐部组织)的影响。在本研究中，我们获取了早期和晚期粤语(L1)-普通话(L2)双语者的弥散张量成像(DTI)数据集，构建了脑WM结构网络，并分析了其拓扑特性。与晚期双语者相比，早期双语者的整体效率和局部效率显著提高，但特征路径长度较短。此外，早期双语者右侧罗兰盖和直回的节效率显著高于晚期双语者，富棒系数和喂食器连接也显著高于晚期双语者。综上所述，这些结果表明，早期双语者的信息交换和整合效率更高，这为理解L2 AoA对双语学习中大脑结构可塑性的影响提供了结构性证据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Neurolinguistics 医学-神经科学

CiteScore

3.90

自引率

5.00%

发文量

审稿时长

17.2 weeks

期刊介绍： The Journal of Neurolinguistics is an international forum for the integration of the neurosciences and language sciences. JNL provides for rapid publication of novel, peer-reviewed research into the interaction between language, communication and brain processes. The focus is on rigorous studies of an empirical or theoretical nature and which make an original contribution to our knowledge about the involvement of the nervous system in communication and its breakdowns. Contributions from neurology, communication disorders, linguistics, neuropsychology and cognitive science in general are welcome. Published articles will typically address issues relating some aspect of language or speech function to its neurological substrates with clear theoretical import. Interdisciplinary work on any aspect of the biological foundations of language and its disorders resulting from brain damage is encouraged. Studies of normal subjects, with clear reference to brain functions, are appropriate. Group-studies on well defined samples and case studies with well documented lesion or nervous system dysfunction are acceptable. The journal is open to empirical reports and review articles. Special issues on aspects of the relation between language and the structure and function of the nervous system are also welcome.