MRI: Acquisition of a Biosemi Event Related Potentials Active Two Acquisition System to Enhance Research and Training at Texas A&M International University

MRI：采集 Biosemi 事件相关电位主动二采集系统，以加强德克萨斯州 A 的研究和培训

• 批准号: 1229123
• 负责人: Anna Cieslicka
• 金额: $ 9.84万
• 依托单位: Texas A&M International University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1229123&HistoricalAwards=false
• 关键词: MRI; Acquisition; Biosemi; Event; Related

With Major Research Instrumentation support, Dr. Anna B. Cieslicka and her collaborators will purchase a Biosemi Electroencephalography/Event Related Potentials (EEG/ERP) Active Two Acquisition System for the Psychology and Communication Department at Texas A&M International University (TAMIU), a Hispanic serving institution in South Texas. Event-related potentials (ERPs) have been critical in investigating language representation and processing since they provide a unique opportunity to "watch" language processing as it unfolds in real-time. The instrument provides a noninvasive technique for measuring electrical activity in the brain, localizing it in both time and space. This is recorded through a set of sensors which are placed on the surface of the scalp.The participating researchers are all active researchers in the study of bilingualism and bilingual cognitive processing. Five collaborative research projects are proposed. Project 1 will explore hemispheric asymmetries (differences between the activation of the left and right cerebral hemispheres) in processing salient (highly familiar) and nonsalient (less familiar) meanings of idiomatic expressions by Spanish-English bilinguals. Findings from PI's earlier research will be verified with greater accuracy due to the superiority of the electroencephalography (EEG) methodology. Project 2 will investigate code-switching in bilinguals and explore how the factors of the direction of switching and language dominance affect fluent bilinguals' comprehension. A second goal of this project will be to address idiom decomposability, or the extent to which idioms are stored and processed as single linguistic units or assembled through linguistic and semantic analysis of their individual constituents. Overall, data obtained from Projects 1 and 2 will allow the PI and collaborators to start a pioneering research program into the electrophysiological correlates of bilingual figurative comprehension. Project 3 will examine the effects of valence and arousal on the mental representation of emotion words. The project will address the ways in which emotion words are distinct from each other, and how valence (positive versus negative) and arousal (low versus high) influence the overall representation of these words in human memory. This work will have implications for the development of methods of learning different word classes and also for aiding memory improvement techniques by means of using emotion-related stimuli. Project 4 will further explore differences in the processing of positively and negatively valenced words in bilinguals' native and nonnative languages and will additionally explore the extent to which individual differences factors (e.g., perspective taking) modulate emotional word processing. Project 5 will address the question of whether linguistic perceivers rely on world knowledge and lexical information to comprehend linguistic statements. Using mono- and bilingual speakers, it will apply an EEG/ERP paradigm in combination with eye-tracking, to investigate whether the bilingual speakers' brain responses engage similar neural structures to understand ironic statements in both languages. This research will further understanding of the neural circuitries underlying language comprehension abilities in bilingual speakers.The research and training program enabled by the equipment will foster intramural and extramural collaborations and increase TAMIU's competitiveness for extramural research funding and publishing. The instrumentation will provide training and access to mainstream electrophysiological methodologies to students that are historically underrepresented in psychology/ neuropsychology doctoral programs. In addition, the requested equipment will improve the university's research infrastructure by advancing numerous research programs in the cognitive sciences and related areas, and will enhance the educational experience of several undergraduate/graduate classes by enabling the creation of new courses in psychology and cognitive neuroscience.

在主要的研究仪器支持下，Anna B. Cieslicka博士和她的合作者将购买Biosemi脑电图/事件相关潜力（EEG/ERP）在德克萨斯州A＆M International University（TAMIU）的心理学和传播部门的两次积极收购系统，这是西克萨斯州西班牙裔美国人的一家西班牙裔服务机构。事件相关的电位（ERP）对于研究语言表示和处理至关重要，因为它们为实时展开时提供了独特的机会来“观察”语言处理。该仪器提供了一种无创技术，用于测量大脑的电活动，并将其定位在时间和空间中。这是通过放置在头皮表面的一组传感器来记录的。参与的研究人员都是双语和双语认知处理研究的活跃研究人员。提出了五个协作研究项目。项目1将探索半球不对称性（左脑和右脑半球的激活之间的差异）在处理显着（非常熟悉的）和非偏见（较不熟悉的）含义的西班牙语 - 英语双语表达式的含义（较不熟悉）含义。由于脑电图（EEG）方法的优越性，PI早期研究的发现将得到更高的准确性验证。项目2将研究双语者中的代码转换，并探讨开关方向和语言优势的因素如何影响流利的双语者的理解。该项目的第二个目标是解决习惯的分解性，或者将成语作为单语言单元存储和处理的程度，或通过对单个成分的语言和语义分析组装而来。总体而言，从项目1和2获得的数据将使PI和合作者能够启动一项开创性的研究计划，使其成为双语形象理解的电生理相关性。项目3将检查价和唤醒对情感词的心理表示的影响。该项目将解决情绪单词彼此不同的方式，以及价（正面与负面）和唤醒（低对高）如何影响这些单词在人类记忆中的总体表示。 这项工作将对学习不同单词类别的方法以及通过使用与情感相关的刺激来帮助记忆改进技术的方法有影响。项目4将进一步探讨双语者本地和非本地语言中正面和负面价值单词的处理的差异，并将探索个体差异因素（例如，视角采取）调节情感文字处理的程度。项目5将解决语言感知者是否依赖世界知识和词汇信息来理解语言陈述的问题。使用单语言和双语扬声器，它将与脑电图相结合，将脑电图/ERP范式与眼轨相结合，以调查双语扬声器的大脑反应是否吸引了相似的神经结构，以了解两种语言的讽刺性陈述。这项研究将进一步理解双语演讲者中语言理解能力的神经循环。设备启用的研究和培训计划将促进壁内和壁外合作，并提高Tamiu对校外研究资金和出版的竞争力。该仪器将为在心理学/神经心理学博士学位课程中人数不足的学生提供培训和访问主流电生理学方法论。此外，要求的设备将通过推进认知科学和相关领域的众多研究计划来改善大学的研究基础设施，并通过创建在心理学和认知神经科学领域的新课程，从而增强几种本科/研究生班的教育经验。