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Operationalization of Sign Language Phonological Similarity and Its Effects on Lexical Access

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Title: Operationalization of Sign Language Phonological Similarity and Its Effects on Lexical Access
Language: English
Authors: Williams, Joshua T., Stone, Adam, Newman, Sharlene D.
Source: Journal of Deaf Studies and Deaf Education. Jul 2017 22(3):303-315.
Availability: Oxford University Press. Great Clarendon Street, Oxford, OX2 6DP, UK. Tel: +44-1865-353907; Fax: +44-1865-353485; e-mail: jnls.cust.serv@oxfordjournals.org; Web site: http://jdsde.oxfordjournals.org/
Peer Reviewed: Y
Page Count: 13
Publication Date: 2017
Sponsoring Agency: National Science Foundation (NSF)
Contract Number: DGE1342962
DGE0903495
SBE1041725
Document Type: Journal Articles
Reports - Research
Descriptors: American Sign Language, Phonology, Lexicology, Repetition, Accuracy, Prediction, Data Analysis, Memory, Language Processing
DOI: 10.1093/deafed/enx014
ISSN: 1081-4159
Abstract: Cognitive mechanisms for sign language lexical access are fairly unknown. This study investigated whether phonological similarity facilitates lexical retrieval in sign languages using measures from a new lexical database for American Sign Language. Additionally, it aimed to determine which similarity metric best fits the present data in order to inform theories of how phonological similarity is constructed within the lexicon and to aid in the operationalization of phonological similarity in sign language. Sign repetition latencies and accuracy were obtained when native signers were asked to reproduce a sign displayed on a computer screen. Results indicated that, as predicted, phonological similarity facilitated repetition latencies and accuracy as long as there were no strict constraints on the type of sublexical features that overlapped. The data converged to suggest that one similarity measure, MaxD, defined as the overlap of any 4 sublexical features, likely best represents mechanisms of phonological similarity in the mental lexicon. Together, these data suggest that lexical access in sign language is facilitated by phonologically similar lexical representations in memory and the optimal operationalization is defined as liberal constraints on overlap of 4 out of 5 sublexical features--similar to the majority of extant definitions in the literature.
Abstractor: As Provided
Entry Date: 2017
Accession Number: EJ1146802
Database: ERIC
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  Data: Operationalization of Sign Language Phonological Similarity and Its Effects on Lexical Access
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  Data: Oxford University Press. Great Clarendon Street, Oxford, OX2 6DP, UK. Tel: +44-1865-353907; Fax: +44-1865-353485; e-mail: jnls.cust.serv@oxfordjournals.org; Web site: http://jdsde.oxfordjournals.org/
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  Data: <searchLink fieldCode="DE" term="%22American+Sign+Language%22">American Sign Language</searchLink><br /><searchLink fieldCode="DE" term="%22Phonology%22">Phonology</searchLink><br /><searchLink fieldCode="DE" term="%22Lexicology%22">Lexicology</searchLink><br /><searchLink fieldCode="DE" term="%22Repetition%22">Repetition</searchLink><br /><searchLink fieldCode="DE" term="%22Accuracy%22">Accuracy</searchLink><br /><searchLink fieldCode="DE" term="%22Prediction%22">Prediction</searchLink><br /><searchLink fieldCode="DE" term="%22Data+Analysis%22">Data Analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Memory%22">Memory</searchLink><br /><searchLink fieldCode="DE" term="%22Language+Processing%22">Language Processing</searchLink>
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  Data: Cognitive mechanisms for sign language lexical access are fairly unknown. This study investigated whether phonological similarity facilitates lexical retrieval in sign languages using measures from a new lexical database for American Sign Language. Additionally, it aimed to determine which similarity metric best fits the present data in order to inform theories of how phonological similarity is constructed within the lexicon and to aid in the operationalization of phonological similarity in sign language. Sign repetition latencies and accuracy were obtained when native signers were asked to reproduce a sign displayed on a computer screen. Results indicated that, as predicted, phonological similarity facilitated repetition latencies and accuracy as long as there were no strict constraints on the type of sublexical features that overlapped. The data converged to suggest that one similarity measure, MaxD, defined as the overlap of any 4 sublexical features, likely best represents mechanisms of phonological similarity in the mental lexicon. Together, these data suggest that lexical access in sign language is facilitated by phonologically similar lexical representations in memory and the optimal operationalization is defined as liberal constraints on overlap of 4 out of 5 sublexical features--similar to the majority of extant definitions in the literature.
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      – SubjectFull: Phonology
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      – SubjectFull: Lexicology
        Type: general
      – SubjectFull: Repetition
        Type: general
      – SubjectFull: Accuracy
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      – SubjectFull: Prediction
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      – SubjectFull: Data Analysis
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      – SubjectFull: Language Processing
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      – TitleFull: Operationalization of Sign Language Phonological Similarity and Its Effects on Lexical Access
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