Doctoral Dissertation Research: The effect of bilingual language exposure on bilingual children's phonological categorization and lexical processing efficiency

博士论文研究：双语语言接触对双语儿童语音分类和词汇加工效率的影响

• 批准号: 1749378
• 负责人: Margarita Kaushanskaya
• 金额: $ 1.46万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-03-01 至 2021-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1749378&HistoricalAwards=false
• 关键词: Doctoral; Dissertation; Research; effect; bilingual

This dissertation research project will examine how language abilities in bilingual children fluctuate as a result of the surrounding language context. Specifically, the investigators will test how exposure to native English, native Spanish, and Spanish-accented English affects the ability of Spanish-English bilingual children to produce and understand English words. The project will expand the current literature on how sounds and words are learned from their environment, and how speech change occurs in both production and perception. The findings will enhance caregivers' and educators' understanding of the impact of the everyday language environments encountered by bilingual children on their language development. With multilingual schools and families becoming increasingly common in the US, children experience significant fluctuations in their language environments, both at home and at school. Therefore, it is important to understand the impact of the different linguistic environments on children's language development. To understand how language environment affects children's language abilities, the researchers will recruit Spanish-English bilingual children ages 6 to 9 to complete phonological and lexical production and perception tasks in English. Immediately prior to completing these tasks, children will be presented with stories in English, Spanish, or Spanish-accented English. Measures of phonological and lexical processing after each exposure type will be compared. The children will also complete language assessments in English and Spanish for a full language profile. Comparison of exposure effects on production vs. perception as well as comparison of changes at the word (lexical access) and sound (phonological) level will directly illustrate how language exposure affects language ability in bilingual children.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

本论文的研究项目将考察双语儿童的语言能力如何随着周围语言环境的变化而波动。具体地说，研究人员将测试接触母语为英语、母语为西班牙语和带有西班牙口音的英语对西班牙语-英语双语儿童产生和理解英语单词的能力有何影响。该项目将扩展目前的文献，关于如何从环境中学习声音和单词，以及语音如何在产生和感知中发生变化。研究结果将加强照顾者和教育工作者对双语儿童日常语言环境对其语言发展的影响的了解。随着多语言学校和家庭在美国变得越来越普遍，孩子们在家里和学校的语言环境都经历了显著的波动。因此，了解不同的语言环境对儿童语言发展的影响是很重要的。为了了解语言环境如何影响儿童的语言能力，研究人员将招募6至9岁的西班牙语-英语双语儿童来完成英语的语音、词汇产生和感知任务。在完成这些任务之前，将向孩子们展示英语、西班牙语或带有西班牙口音的英语故事。我们将比较每种暴露类型后语音和词汇加工的测量结果。孩子们还将完成英语和西班牙语的语言评估，以获得完整的语言档案。语言暴露对语言产出和感知的影响的比较，以及单词(词汇通达)和声音(语音)水平变化的比较，将直接说明语言暴露如何影响双语儿童的语言能力。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。