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Normative Data For Nonverbal Memory Tests In A Sample Of Deaf Adults that use French Sign Language.

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Title: Normative Data For Nonverbal Memory Tests In A Sample Of Deaf Adults that use French Sign Language.
Authors: Fleurion, Delphine (AUTHOR), Vignal, Fanny (AUTHOR), Drion, Benoit (AUTHOR)
Source: Journal of Clinical & Experimental Neuropsychology. Jul2025, Vol. 47 Issue 5, p495-507. 13p.
Subjects: Sign language, Deaf people, Memory disorders, Neurobehavioral disorders, Memory testing
Abstract: Objective: Specific cognitive functioning is described among people with prelingual deafness who use sign language. This would be linked to sensorial deprivation from a premature age and associated with early exposure to sign language leading to a different organization of visuo-attentional and linguistic processes in deaf people, and thus to specific functioning of the nonverbal memory system. Due to a lack of validation, psychometric tests cannot be used to assess cognitive and memory disorders in deaf people who communicate in French Sign Language. Methods: We previously transposed the validated a screening test for cognitive impairment into a version adapted for sign language users: Mini-Mental-State – Langue des Signes (MMS-LS). It takes into account the cultural and linguistic characteristics of this population, providing a useful clinical tool for practitioners. The present study was designed to improve assessment of neurocognitive disorders of deaf individuals by establishing normative values for visual memory tests. Thus, the Rey-Osterrieth Complex Figure and the Doors test from the Doors and People tests were administered to a cohort of 110 deaf signers. Results: Psychometrics analyses showed excellent inter-rater reliability for copy and reproduction in memory tasks. Both tests exhibited excellent internal validity and were found to be sensitive to the presence of neurocognitive disorders as demonstrated in a group of participants with Major Neurocognitive Disorders and a low MMS-LS score. Conclusion: Normative values, expressed in percentiles, established from these tests must be interpreted with precaution due to the small number of participants. However, these tools could be made available to neuropsychologists to facilitate clinical use, with further advice on how to better take into account the specificity of this population. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Clinical & Experimental Neuropsychology is the property of Taylor & Francis Ltd 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: Psychology and Behavioral Sciences Collection
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  Label: Title
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  Data: Normative Data For Nonverbal Memory Tests In A Sample Of Deaf Adults that use French Sign Language.
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  Data: <searchLink fieldCode="AR" term="%22Fleurion%2C+Delphine%22">Fleurion, Delphine</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vignal%2C+Fanny%22">Vignal, Fanny</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Drion%2C+Benoit%22">Drion, Benoit</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Clinical+%26+Experimental+Neuropsychology%22">Journal of Clinical & Experimental Neuropsychology</searchLink>. Jul2025, Vol. 47 Issue 5, p495-507. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Sign+language%22">Sign language</searchLink><br /><searchLink fieldCode="DE" term="%22Deaf+people%22">Deaf people</searchLink><br /><searchLink fieldCode="DE" term="%22Memory+disorders%22">Memory disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Neurobehavioral+disorders%22">Neurobehavioral disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Memory+testing%22">Memory testing</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Objective: Specific cognitive functioning is described among people with prelingual deafness who use sign language. This would be linked to sensorial deprivation from a premature age and associated with early exposure to sign language leading to a different organization of visuo-attentional and linguistic processes in deaf people, and thus to specific functioning of the nonverbal memory system. Due to a lack of validation, psychometric tests cannot be used to assess cognitive and memory disorders in deaf people who communicate in French Sign Language. Methods: We previously transposed the validated a screening test for cognitive impairment into a version adapted for sign language users: Mini-Mental-State – Langue des Signes (MMS-LS). It takes into account the cultural and linguistic characteristics of this population, providing a useful clinical tool for practitioners. The present study was designed to improve assessment of neurocognitive disorders of deaf individuals by establishing normative values for visual memory tests. Thus, the Rey-Osterrieth Complex Figure and the Doors test from the Doors and People tests were administered to a cohort of 110 deaf signers. Results: Psychometrics analyses showed excellent inter-rater reliability for copy and reproduction in memory tasks. Both tests exhibited excellent internal validity and were found to be sensitive to the presence of neurocognitive disorders as demonstrated in a group of participants with Major Neurocognitive Disorders and a low MMS-LS score. Conclusion: Normative values, expressed in percentiles, established from these tests must be interpreted with precaution due to the small number of participants. However, these tools could be made available to neuropsychologists to facilitate clinical use, with further advice on how to better take into account the specificity of this population. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Clinical & Experimental Neuropsychology is the property of Taylor & Francis Ltd 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.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/13803395.2025.2530564
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        Text: English
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      – SubjectFull: Deaf people
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      – SubjectFull: Memory disorders
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      – SubjectFull: Neurobehavioral disorders
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      – TitleFull: Normative Data For Nonverbal Memory Tests In A Sample Of Deaf Adults that use French Sign Language.
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              M: 07
              Text: Jul2025
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              Y: 2025
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