ERPs reveal the Mechanisms of Bilingual Language Control

ERP 揭示双语语言控制机制

• 批准号: 10682744
• 负责人: Chuchu Li
• 金额: $ 24.9万
• 依托单位: UNIVERSITY OF CALIFORNIA, SAN DIEGO
• 依托单位国家: 美国
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10682744
• 关键词: Address; Adopted; Advisory Committees; Affect; Articulation; Brain; Career Mobility; Cognitive; Communication; Comprehension; Data; Educational workshop; Electrophysiology (science); Ensure; Event; Event-Related Potentials; Fostering; Goals; Language; Language Development; Measurement; Measures; Mentors; Mentorship; Methodology; Modality; Monitor; Multilingualism; Neurocognitive; Pathway interactions; Phase; Play; Process; Production; Reading; Research; Research Project Grants; Role; Semantics; Societies; Speech; Structure; Time; Training; Work; behavior measurement; bilingualism; career; cognitive ability; control theory; cost; language comprehension; language processing; neuromechanism; phonology; prevent; programs; syntax; theories

Bilinguals have remarkable control abilities to prevent interference between languages in production and comprehension, two modalities that have different goals and go through different pathways. However, it still remains unclear if and to what extent language control mechanisms are shared or different across these two modalities. The proposed project will systematically compare language control mechanism in production versus comprehension at different processing levels. We will combine ERP (Event-Related Potential in the brain) measures and the mixed-language paragraph reading paradigm to reveal the neuro-cognitive processes of language switching in sentence context, modulating syntactic and phonological constraints. Bilinguals will read the same mixed-language paragraphs in production and comprehension tasks, with the only difference being if articulation is required. ERP measures will provide detailed information about how language control works as the language-switching event unfolds in real time. My Specific Aims are: Aim 1 (K99): to investigate the role of syntactic constraints in language control during production vs. comprehension by measuring bilinguals' ERPs on language switching with content vs. function words, which carry more semantic vs. syntactic information, respectively. In production, I expect larger costs switching function words, as these need more inhibition and monitoring, revealed by N2 and ERN respectively. If syntactic constraints equally affect production and comprehension, function switches should be more costly than content switches also in comprehension, revealed by P600/LPC, or even N400 as well. Alternatively, content switches might be more costly in comprehension, revealed by P600/LPC and N400, due to vague syntactic analysis and the priority to integrate semantic information. Aim 2 (R00): to investigate how phonological constraints influence language control during production vs. comprehension by measuring bilinguals' ERPs on intra-sentential language switches with cognates vs. noncognates. Cognates are words with cross-language phonological overlap (e.g., lemon-limón). I expect larger costs with cognate than noncognate switches in production, as more inhibition and monitoring are needed for cognates, revealed by N2 and ERN respectively. For comprehension, if language selection is also critical, switch costs with cognates may be larger than noncognates, revealed by N400 and/or P600/LPC. Otherwise, switch costs may be smaller with cognates than noncognates due to easier semantic integration with cognates, revealed at least by N400, or even by P600/LPC as well. My training in the K99 phase will include structured mentorship by my advisory committee on both theoretical framework (language production and comprehension, as well as bilingual language control) and the training of new methodology (ERP measures). It will also include formal course work, workshops, and a program of career transition. This career plan and research project will ensure my successful transition to independent research, fulfilling my career goal of understanding bilingual language processing in a comprehensive view. !

双语者具有明显的控制能力，可以防止语言在生产中的干扰和 理解，两个具有不同目标并经历不同途径的方式。但是，仍然如此 尚不清楚这两个语言控制机制是否以及在何种程度上是不同的 方式。拟议的项目将系统地比较生产中的语言控制机制 在不同处理水平上的理解与理解。我们将结合ERP（与事件相关的潜力 大脑）措施和混合语言段落阅读范式，以揭示神经认知过程 语言切换在句子上下文中，调节句法和语音约束。双语者会 阅读生产和理解任务中相同的混合语言段落，唯一的不同 如果需要发音。 ERP措施将提供有关语言控制的详细信息 随着语言开关事件的实时开发。我的具体目的是：目标1（K99）：调查 句法约束在生产期间语言控制中的作用与测量 双语者的ERP在语言切换中使用内容与函数单词，函数词有更多的语义vs。 句法信息分别。在生产中，我期望更大的成本切换功能词，因为这些需要 N2和ERN分别揭示了更多的抑制和监测。如果句法约束同样影响 生产和理解，功能开关也应比内容开关更为昂贵 理解，由P600/LPC甚至N400揭示。或者，内容开关可能更多 由P600/LPC和N400揭示的理解力高昂，这是由于投票句法分析和优先事项 集成的语义信息。目标2（R00）：调查语音约束如何影响语言 通过测量双语者的ERP，在生产期间的控制与理解力的控制 具有同源与非知识的开关。认知是具有跨语言语音重叠的单词（例如， 柠檬-limón）。我预计，随着抑制作用更多 N2和ERN分别揭示了认知需要监测。为了理解，如果 语言选择也至关重要，认知的开关成本可能大于非认知，揭示了 N400和/或P600/LPC。否则，认知的开关成本可能比非认知小，因为更容易 与同源的语义集成，至少由N400甚至P600/LPC揭示。我在 K99阶段将包括我的两个理论框架咨询委员会的结构化精神制。 （语言制作和理解以及双语语言控制）和新的培训 方法论（ERP测量）。它还将包括正式的课程工作，研讨会和职业课程 过渡。这个职业计划和研究项目将确保我成功过渡到独立研究， 实现我在全面观点中理解双语语言处理的职业目标。 呢