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.

在主要研究仪器的支持下，安娜博士B。Cieslicka和她的合作者将为德克萨斯州A M国际大学（TAMIU）的心理学和传播系购买Biosemi脑电图/事件相关电位（EEG/ERP）主动两次采集系统，该大学是德克萨斯州南部的西班牙裔服务机构。事件相关电位（ERP）在研究语言表征和处理方面至关重要，因为它们提供了一个独特的机会来“观察”语言处理过程。该仪器提供了一种非侵入性的技术来测量大脑中的电活动，在时间和空间上定位它。这是通过一组传感器被放置在头皮的表面记录。参与研究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。提出了五个合作研究项目。项目1将探讨西语-英语双语者在处理显著（高度熟悉）和非显著（不太熟悉）的习语意义时的半球不对称性（左右大脑半球激活之间的差异）。由于脑电图（EEG）方法的优越性，PI早期研究的结果将得到更准确的验证。项目二将研究双语者的语码转换，并探讨转换方向和语言优势因素如何影响流利双语者的理解。这个项目的第二个目标是解决习语的可分解性，或者习语作为单个语言单位存储和处理的程度，或者通过对其单个成分的语言和语义分析来组装的程度。总体而言，从项目1和2获得的数据将使PI和合作者开始一项开创性的研究计划，进入双语比喻理解的电生理相关性。项目三将考察效价和唤醒对情绪词心理表征的影响。该项目将解决情感词彼此不同的方式，以及效价（积极与消极）和唤醒（低与高）如何影响这些词在人类记忆中的整体表现。 这项工作将有影响的学习不同的词类的方法的发展，也有助于记忆改善技术，通过使用情绪相关的刺激。项目4将进一步探索双语者在母语和非母语中处理正配价和负配价单词的差异，并将进一步探索个体差异因素（例如，观点采择）调节情绪性文字处理。项目5将探讨语言感知者是否依赖于世界知识和词汇信息来理解语言陈述。使用单语和双语扬声器，它将应用EEG/ERP范式结合眼动跟踪，以调查双语扬声器的大脑反应是否涉及类似的神经结构，以理解两种语言中的讽刺语句。这项研究将进一步了解双语者语言理解能力的神经回路。该设备所实现的研究和培训计划将促进校内和校外合作，并提高TAMIU在校外研究资金和出版方面的竞争力。该仪器将提供培训和主流电生理学方法的学生是历史上在心理学/神经心理学博士课程代表性不足。此外，所要求的设备将通过推进认知科学和相关领域的众多研究项目来改善大学的研究基础设施，并将通过创建心理学和认知神经科学的新课程来增强几个本科生/研究生班的教育经验。