Second-language vowel perception and production

第二语言元音感知和产生

• 批准号: 6588610
• 负责人: CATHERINE L ROGERS
• 金额: $ 6.95万
• 依托单位: UNIVERSITY OF SOUTH FLORIDA
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6588610
• 关键词: Hispanic Americans; behavioral /social science research tag; clinical research; cues; hearing tests; human subject; interview; language development; multilingualism; nonEnglish language; phonology; questionnaires; sound perception; speech; speech recognition; verbal learning

DESCRIPTION (provided by applicant): A better understanding is needed of the development of adult second-language speech production and perception abilities across a range of listening and speaking conditions. In order to communicate effectively, especially in adverse conditions, non-native speakers must make appropriate use of a range of cues to speech sound identification in the second language. Thus, performance across differing conditions may be viewed as reflecting non-natives' productive and perceptual phonetic knowledge of these cues, and development can be viewed as changes in cue weighting. These issues will be explored using production and perception data from high- and low-proficiency Spanish speakers of English as a second language and native English speakers. Experiment 1 will investigate the acoustic properties of vowels produced in citation and hyperarticulation conditions. Experiment 2 will investigate subjects' identification of natural vowels and synthetic vowels manipulated to neutralize or maintain the cues of duration and spectral change. Experiment 3 will measure the intelligibility of the citation and hyperarticulated vowels produced in Experiment 1. The data will be used to test the hypothesis that less proficient non-natives lack knowledge of the full range of cues to vowel identification. It is predicted that, for some cues, the less proficient non-natives will exhibit no difference in production performance between citation and hyperarticulation conditions and no difference in perception performance between the full-cue and some cue-neutralized conditions. A second prediction is that the more proficient non-natives' developing knowledge of these cues will be reflected by an exaggerated or restricted degree of change across conditions for some production and perception measures. These data will contribute to our understanding of the relationship between productive and perceptual phonetic knowledge. The data should provide some support for one of three ideas: 1) that perception unidirectionally influences production; 2) that production and perception influence one another bi-directionally; or 3) that perception and production skills develop independently. The outcome of this research should lead to more effective training methods to improve second-language learners' communication skills.

描述(由申请人提供)：需要更好地了解成人第二语言言语产生和感知能力在一系列听和说条件下的发展。为了有效地进行交流，特别是在不利的条件下，非母语者必须适当地使用一系列线索来识别第二语言中的语音。因此，在不同条件下的表现可以被视为反映了非母语者对这些线索的生产性和感知性语音知识，而发展可以被视为线索权重的变化。这些问题将利用以英语为第二语言的高水平和低水平西班牙语使用者以及以英语为母语的人的产出和认知数据进行探讨。实验一将考察元音在引用和超发音条件下的声学特性。实验2将考察受试者对自然元音和合成元音的识别，这些元音被操纵以中和或保持持续时间和频谱变化的线索。实验3将测量实验1中产生的引文和超发音元音的可理解性。这些数据将被用来检验一个假设，即不太熟练的非母语者缺乏识别元音的所有线索的知识。据预测，对于某些线索，非熟练程度较低的非母语者在引文和多发音条件下的生产表现没有差异，在完全线索和某些线索中和条件下的知觉表现也没有差异。第二个预测是，更熟练的非本地人对这些线索的发展知识将反映在某些生产和感知措施的条件变化中被夸大或限制的程度。这些数据有助于我们理解产出性语音知识和知觉性语音知识之间的关系。数据应该为以下三种观点中的一种提供支持：1)知觉单向影响生产；2)生产和知觉相互双向影响；或3)知觉和生产技能独立发展。这项研究的结果应该会导致更有效的培训方法来提高第二语言学习者的交际技能。