在西班牙语-英语双语儿童中,语义和语法处理的神经特异性
Neelima Wagley1, Xiaosu Hu2, Teresa Satterfield3
1Arizona State University, Speech and Hearing Science, 976 S Forest Mall, Tempe, AZ 85281, USA.
Brain and language
|February 1, 2024
概括
年幼的双语儿童显示出专门用于语法和含义的大脑区域. 在两种语言中更高的熟练程度可以加强这些神经通路,这表明语言发展中具有积极的跨语言相互作用.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 语言学的语言学.
背景情况:
- 左边的皮里西尔维亚路径的神经专业化支持单语者语言处理.
- 关于年轻双语者对语言的神经专业化的研究有限.
研究的目的:
- 在早期的西班牙语-英语双语儿童中调查语法和语义的神经专业化.
- 探索双语语言能力与神经激活模式之间的关系.
主要方法:
- 功能近红外光谱学 (fNIRS) 用于测量大脑活动.
- 一个听觉句子判断任务评估了英语的形态语法和语义.
- 参与者是65名早暴露的7-11岁的西班牙语-英语儿童.
主要成果:
- 形态合成任务激活了左下额头 (IFG).
- 语义任务激活了左后中间状回路 (MTG).
- 在左上旋 (STG) 观察到的专业化用于形态表达和左MTG/角旋用于语义.
结论:
- 双语语言技能与特定大脑区域的语法 (左IFG) 和语义 (左MTG) 的参与有关.
- 两种语言的高水平与更强的参与有关,支持积极的跨语言交互模式.
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