Age of acquisition effects on sign language development and brain processing

习得年龄对手语发展和大脑处理的影响

• 批准号: 10531233
• 负责人: Rachel I Mayberry
• 金额: $ 59万
• 依托单位: UNIVERSITY OF CALIFORNIA, SAN DIEGO
• 依托单位国家: 美国
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-12-01 至 2024-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10531233
• 关键词: Adolescent; Adult; Affect; Age; Age of Onset; American Sign Language; Birth; Brain; Characteristics; Child; Childhood; Chronic; Communication; Comprehension; Development; Dorsal; Exhibits; Experimental Designs; Exposure to; Fiber; Functional Magnetic Resonance Imaging; Growth; Home; Impairment; Individual; Infant; Language; Language Development; Left; Linguistics; Location; Longitudinal Studies; Modeling; Pathway interactions; Pattern; Population; Production; Property; Research; Retrospective Studies; Series; Sign Language; Structure; System; Testing; Time; Variant; age effect; comprehension test; critical period; deaf; deafness; experience; experimental study; human old age (65+); infancy; language onset; language processing; lexical processing; literacy; neural; neural correlate; postnatal; syntax; white matter

Project Summary Age of acquisition effects on sign language development and brain processing Age of first-language age of acquisition, L1 AoA, has lifelong effects on language abilities and brain language processing. Infants born deaf often first experience language at a variety of ages due to an inability to perceive spoken language and not being exposed to sign language until older ages. We use this naturally occurring variation in L1 AoA to model the critical period for language. In a series of studies, ask what the language and neural correlates of the critical period might be. We test the hypothesis the organization of the brain language system is an emergent property arising from interactive effects between language experience and acquisition and post-natal brain growth. We test the hypothesis with two developmental paradigms, retrospective and longitudinal. The retrospective studies test deaf adults whose ASL acquisition is complete. These studies investigate whether L1 AoA effects between the ages of 1-8 are linear with respect to the level of syntactic complexity acquired, the locus and distribution of neurolinguistic processing, and characteristics of the dorsal and ventral white matter tracts. The longitudinal studies test deaf adolescents whose ASL acquisition may be ongoing and whose L1 AoA began in infancy, or in early or late childhood. The adolescents are tested annually for three consecutive years with same experiments as used in the adult study. The language experiments are designed to test the comprehension and production of ASL sentence structure as a function of syntactic complexity. The experimental paradigms are sentence-to-picture matching, elicited imitation, syntactic priming, and spontaneous production. The neurolinguistic experiments use fMRI to investigate sentence and lexical processing. The brain structure studies use DTI to investigate dorsal and ventral white matter tract development. If the brain language system requires linguistic experience during early post-natal brain growth to become fully functional, then levels of syntactic development should correspond with the distribution and location of neurolinguistic processing in the brain as well as with the robustness of white matter tract development in the brain language network.

项目总结

项目成果

Prediction in a visual language: real-time sentence processing in American Sign Language across development.

• DOI: 10.1080/23273798.2017.1411961
• 发表时间: 2018
• 期刊: Language, cognition and neuroscience
• 作者: Lieberman AM;Borovsky A;Mayberry RI
• 通讯作者: Mayberry RI

When event knowledge overrides word order in sentence comprehension: Learning a first language after childhood.

• DOI: 10.1111/desc.13073
• 发表时间: 2021-09
• 期刊: DEVELOPMENTAL SCIENCE
• 影响因子: 3.7
• 作者: Cheng, Qi;Mayberry, Rachel I.
• 通讯作者: Mayberry, Rachel I.

Number Stroop Effects in Arabic Digits and ASL Number Signs: The Impact of Age and Setting of Language Acquisition.

• DOI: 10.1080/15475441.2022.2047689
• 发表时间: 2023
• 期刊: LANGUAGE LEARNING AND DEVELOPMENT
• 影响因子: 1.5
• 作者: Semushina, Nina;Mayberry, Rachel
• 通讯作者: Mayberry, Rachel

Where to look for American Sign Language (ASL) sublexical structure in the visual world: Reply to Salverda (2016).

在视觉世界中寻找美国手语 (ASL) 的词汇下结构：回复 Salverda (2016)。

• DOI: 10.1037/xlm0000309
• 发表时间: 2016
• 期刊: Journal of experimental psychology. Learning, memory, and cognition
• 作者: Lieberman,AmyM;Borovsky,Arielle;Hatrak,Marla;Mayberry,RachelI
• 通讯作者: Mayberry,RachelI

Implicit causality biases and thematic roles in American Sign Language.

• DOI: 10.3758/s13428-021-01561-1
• 发表时间: 2021-10
• 期刊: Behavior research methods
• 影响因子: 5.4
• 作者: Frederiksen AT;Mayberry RI
• 通讯作者: Mayberry RI