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双语语言生产中的主动和反应性语言控制通过解码持续潜力和电脑图振荡来揭示
Zhaoqi Zhang1, Fengyang Ma2, Taomei Guo1
1State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China.
Human brain mapping
|July 29, 2023
概括
双语者在语言切换过程中表现出不对称的大脑活动,这表明他们对主导语言的积极和反应性控制 (L1). 这项研究探讨了双语单词生成中的注意力控制.
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:
- 双语语言生产涉及复杂的执行功能,包括语言控制.
- 了解主动和反应性控制机制的相互作用对于双语研究至关重要.
研究的目的:
- 调查在图片命名过程中,中英双语人士的主动和反应性语言控制.
- 使用脑电图 (EEG) 检查语言切换的神经相关物.
主要方法:
- 使用多变量脑电图 (EEG) 和α频段解码分析.
- 使用基于视觉线索的图片命名的语言切换任务.
- 分析了开关和非开关试验的EEG解码精度,以推断语言抑制.
主要成果:
- 对于第一语言 (L1) 的多变量EEG解码精度在提示开始后不久就超出了机会,但对于第二语言 (L2) 则没有.
- 对L1的α频段解码精度在相对于刺激呈现的早期和晚期时间窗口中显示出显著的水平.
- 不对称的解码模式表明主导的L1控制,可能涉及主动和反应机制.
结论:
- 双语词的产生涉及不同的主动和反应性注意力控制机制,主要是对主导语言 (L1).
- 有证据表明,双语者在主动和反应性语言控制策略之间可能存在重叠.
- 这些发现有助于完善双语语言控制和执行功能的模型.
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