Neural substrates of sign language vocabulary processing in less-skilled hearing M2L2 signers: Evidence for difficult phonological movement perception.
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| Title: | Neural substrates of sign language vocabulary processing in less-skilled hearing M2L2 signers: Evidence for difficult phonological movement perception. |
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| Authors: | WILLIAMS, JOSHUA T.1 willjota@indiana.edu, DARCY, ISABELLE2, NEWMAN, SHARLENE D.3 |
| Source: | Bilingualism: Language & Cognition. May2018, Vol. 21 Issue 3, p550-562. 13p. |
| Subject Terms: | *Phonology, *Second language acquisition, *American Sign Language, Sign language acquisition, Semantics |
| Abstract: | No previous research has investigated the neural correlates of vocabulary acquisition in second language learners of sign language. The present study investigated whether poor vocabulary knowledge engaged similar prefrontal lexico-semantic regions as seen in unimodal L2 learners. Behavioral improvements in vocabulary knowledge in a cohort of M2L2 learners were quantified. Results indicated that there is significant increase in vocabulary knowledge after one semester, but stabilized in the second semester. A longitudinal fMRI analysis was implemented for a subset of learners who were followed for the entire 10 months during initial sign language acquisition. The results indicated that learners who had poor sign vocabulary knowledge consistently showed greater activation in regions involved in motor simulation, salience, biological motion and spatial processing, and lexico-semantic retrieval. In conclusion, poor vocabulary knowledge requires greater engagement of modality-independent and modality-dependent regions, which could account for behavioral evidence of difficulty in visual phonology processing. [ABSTRACT FROM AUTHOR] |
| Copyright of Bilingualism: Language & Cognition is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Education Research Complete |
| FullText | Text: Availability: 0 |
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| Header | DbId: ehh DbLabel: Education Research Complete An: 129521652 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1017/S1366728917000347 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 550 Subjects: – SubjectFull: Phonology Type: general – SubjectFull: Second language acquisition Type: general – SubjectFull: American Sign Language Type: general – SubjectFull: Sign language acquisition Type: general – SubjectFull: Semantics Type: general Titles: – TitleFull: Neural substrates of sign language vocabulary processing in less-skilled hearing M2L2 signers: Evidence for difficult phonological movement perception. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: WILLIAMS, JOSHUA T. – PersonEntity: Name: NameFull: DARCY, ISABELLE – PersonEntity: Name: NameFull: NEWMAN, SHARLENE D. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 13667289 Numbering: – Type: volume Value: 21 – Type: issue Value: 3 Titles: – TitleFull: Bilingualism: Language & Cognition Type: main |
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