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多语言语言多样性保护母语生产在不同的控制下要求的需求
Keyi Kang1,2, Yumeng Xiao1, Hanxiang Yu1
1Centre for Cognitive and Brain Sciences, University of Macau, Taipa, Macau SAR, China.
Brain sciences
|November 25, 2023
概括
在高控制要求下,多语言个体表现出母语表现下降和大脑活动增加. 然而,不同的语言使用提高了准确性和神经网络的效率,有助于任务适应.
科学领域:
- 认知神经科学 认知神经科学
- 心理语言学 心理语言学
- 语言的神经科学语言的神经科学
背景情况:
- 多语言影响认知能力,但其对母语生产的影响,特别是在控制需求下,理解程度较低.
- 之前的研究主要集中在非母语能力上,在多语种语言中理解母语处理方面留下了差距.
- 通过语言变等指标量化多语言体验,为研究其认知后果提供了一种新的方法.
研究的目的:
- 为了研究多语言主义如何影响母语的生产在不同的控制需求下.
- 检查语言 (语言使用的多样性) 和母语任务中的认知控制之间的关系.
- 探索多语言母语生产中控制需求的神经相关性.
主要方法:
- 一个语义上的Go/No-Go图片命名任务被用来评估母语制作.
- 对照要求被操纵,通过在各种条件中改变Go试验的比例.
- 用语言来量化多语种经验,并收集行为和神经成像数据.
主要成果:
- 控制需求的增加导致了较差的行为表现和多语言个体中大脑激活的增加.
- 更高的语言与更好的命名准确性和更相互连接的神经网络相关.
- 具有多种多样和平衡语言使用的多语言者对增加的任务需求做出了更有效的反应.
结论:
- 多语言主义在执行控制需求和母语生产效率之间进行了权衡.
- 多元化和平衡的多语言体验可以增强认知控制和神经网络的灵活性,有利于母语处理.
- 这些发现强调了多语言大脑在管理语言和认知需求方面的适应性.
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