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在双语大脑中,第一语言和第二语言形态处理的共同和独特的神经相关物
Fei Gao1,2, Lin Hua1,3, Paulo Armada-da-Silva1,3
1Centre for Cognitive and Brain Sciences, University of Macau, Macau SAR, China.
NPJ science of learning
|September 4, 2023
概括
双语者处理他们的第一语言 (L1) 和第二语言 (L2) 形态使用类似的大脑过程,主要是参与L1神经资源的两个. 这表明L2的形态处理在程度上与L1.1不同,而不是类型.
科学领域:
- 神经科学是一个神经科学.
- 心理语言学 心理语言学
- 认知科学 认知科学
背景情况:
- 形态学对语言至关重要,但其神经支在双语者是不清楚的.
- 了解第一语言 (L1) 和第二语言 (L2) 的形态是如何处理的,是双语研究的关键.
研究的目的:
- 研究中英双语者中L1和L2形态的神经处理中的相似性和差异.
- 探索双语者体内形态处理背后的大脑机制.
主要方法:
- 成年汉语-英语双语者完成了形态原始化词汇决策任务.
- 电生理学和光学大脑反应同时使用脑电图 (EEG) 和功能近红外光谱 (fNIRS) 记录.
主要成果:
- 功能近红外光谱学 (fNIRS) 在左额头时网络中显示了形态与语义原始化的独特神经模式.
- 在形态分析过程中,L1中文处理比L2英语更多地激活了左前额叶皮质.
- 早期左前阴性 (ELAN) 表示跨语言的形态处理不同程度,而不是类型.
- 对于L1和L2.2,观察到共享的早期 (P250) 和晚期 (300500 ms负值) 结构解析过程.
结论:
- 结果支持统一的双语发展竞争模式.
- 双语者似乎利用L1神经资源进行L2形态表示和处理.
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