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Comparing Two Connected Speech Tasks in Greek Speakers With the Logopenic Variant of Primary Progressive Aphasia and Alzheimer's Disease.

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Title: Comparing Two Connected Speech Tasks in Greek Speakers With the Logopenic Variant of Primary Progressive Aphasia and Alzheimer's Disease.
Authors: Karpathiou, Nomiki1,2 n.karpathiou@go.uop.gr, Kambanaros, Maria3
Source: American Journal of Speech-Language Pathology. Jul2025, Vol. 34 Issue 4, p2141-2155. 15p.
Subject Terms: *Comparative grammar, *Alzheimer's disease, *Data analysis, *Aphasia, *Stuttering, *Storytelling, *Speech evaluation, *Speech perception, *Vocabulary, Task performance, Executive function, Kruskal-Wallis Test, Descriptive statistics, Mann Whitney U Test, Physiological aspects of speech, Neuropsychological tests, Analysis of variance, Statistics
Abstract: Purpose: Different tasks have been used to elicit connected speech samples and analyze speech and language production in dementia. In this study, we explored whether there was a differential performance for individuals with Alzheimer's disease (AD) and the logopenic variant of primary progressive aphasia (lvPPA) on two elicitation tasks, picture description and story retell. Moreover, we investigated the relationship between connected speech measures and formal neuropsychological tests. Method: A total of 18 individuals participated in this study: six with lvPPA, six with AD, and six neurotypical adults matched for gender, age, and education. Connected speech analysis was based on a quantitative production analysis. Results: Differences between the two tasks were found for mean logarithmic frequency of open-class words, number of sentences, and mean utterance length. Individuals with lvPPA differed from individuals with AD and neurotypical adults on type-token ratio square root, mean utterance length, and sentence elaboration index. Significant intercorrelations between connected speech measures in the two tasks were found for speech rate and total dysfluencies. Finally, significant associations were detected between connected speech measures and formal neuropsychological tests. Conclusions: Connected speech analysis can assist in diagnosing lvPPA and distinguishing it from AD. While dysfluencies and speech rate remain consistent across connected speech tasks, other variables vary. Story retell demands greater executive resources and encourages richer vocabulary and morphosyntactic production, more accurately reflecting real-life communication compared to traditional picture description tasks. The study highlights the value of using connected speech assessment in clinical evaluations and carefully selecting appropriate tasks. Supplemental Material: https://doi.org/10.23641/asha.29114060 [ABSTRACT FROM AUTHOR]
Copyright of American Journal of Speech-Language Pathology is the property of American Speech-Language-Hearing Association 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
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  Data: Comparing Two Connected Speech Tasks in Greek Speakers With the Logopenic Variant of Primary Progressive Aphasia and Alzheimer's Disease.
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  Data: <searchLink fieldCode="AR" term="%22Karpathiou%2C+Nomiki%22">Karpathiou, Nomiki</searchLink><relatesTo>1,2</relatesTo><i> n.karpathiou@go.uop.gr</i><br /><searchLink fieldCode="AR" term="%22Kambanaros%2C+Maria%22">Kambanaros, Maria</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22American+Journal+of+Speech-Language+Pathology%22">American Journal of Speech-Language Pathology</searchLink>. Jul2025, Vol. 34 Issue 4, p2141-2155. 15p.
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  Data: *<searchLink fieldCode="DE" term="%22Comparative+grammar%22">Comparative grammar</searchLink><br />*<searchLink fieldCode="DE" term="%22Alzheimer's+disease%22">Alzheimer's disease</searchLink><br />*<searchLink fieldCode="DE" term="%22Data+analysis%22">Data analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Aphasia%22">Aphasia</searchLink><br />*<searchLink fieldCode="DE" term="%22Stuttering%22">Stuttering</searchLink><br />*<searchLink fieldCode="DE" term="%22Storytelling%22">Storytelling</searchLink><br />*<searchLink fieldCode="DE" term="%22Speech+evaluation%22">Speech evaluation</searchLink><br />*<searchLink fieldCode="DE" term="%22Speech+perception%22">Speech perception</searchLink><br />*<searchLink fieldCode="DE" term="%22Vocabulary%22">Vocabulary</searchLink><br /><searchLink fieldCode="DE" term="%22Task+performance%22">Task performance</searchLink><br /><searchLink fieldCode="DE" term="%22Executive+function%22">Executive function</searchLink><br /><searchLink fieldCode="DE" term="%22Kruskal-Wallis+Test%22">Kruskal-Wallis Test</searchLink><br /><searchLink fieldCode="DE" term="%22Descriptive+statistics%22">Descriptive statistics</searchLink><br /><searchLink fieldCode="DE" term="%22Mann+Whitney+U+Test%22">Mann Whitney U Test</searchLink><br /><searchLink fieldCode="DE" term="%22Physiological+aspects+of+speech%22">Physiological aspects of speech</searchLink><br /><searchLink fieldCode="DE" term="%22Neuropsychological+tests%22">Neuropsychological tests</searchLink><br /><searchLink fieldCode="DE" term="%22Analysis+of+variance%22">Analysis of variance</searchLink><br /><searchLink fieldCode="DE" term="%22Statistics%22">Statistics</searchLink>
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  Label: Abstract
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  Data: Purpose: Different tasks have been used to elicit connected speech samples and analyze speech and language production in dementia. In this study, we explored whether there was a differential performance for individuals with Alzheimer's disease (AD) and the logopenic variant of primary progressive aphasia (lvPPA) on two elicitation tasks, picture description and story retell. Moreover, we investigated the relationship between connected speech measures and formal neuropsychological tests. Method: A total of 18 individuals participated in this study: six with lvPPA, six with AD, and six neurotypical adults matched for gender, age, and education. Connected speech analysis was based on a quantitative production analysis. Results: Differences between the two tasks were found for mean logarithmic frequency of open-class words, number of sentences, and mean utterance length. Individuals with lvPPA differed from individuals with AD and neurotypical adults on type-token ratio square root, mean utterance length, and sentence elaboration index. Significant intercorrelations between connected speech measures in the two tasks were found for speech rate and total dysfluencies. Finally, significant associations were detected between connected speech measures and formal neuropsychological tests. Conclusions: Connected speech analysis can assist in diagnosing lvPPA and distinguishing it from AD. While dysfluencies and speech rate remain consistent across connected speech tasks, other variables vary. Story retell demands greater executive resources and encourages richer vocabulary and morphosyntactic production, more accurately reflecting real-life communication compared to traditional picture description tasks. The study highlights the value of using connected speech assessment in clinical evaluations and carefully selecting appropriate tasks. Supplemental Material: https://doi.org/10.23641/asha.29114060 [ABSTRACT FROM AUTHOR]
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  Group: Ab
  Data: <i>Copyright of American Journal of Speech-Language Pathology is the property of American Speech-Language-Hearing Association 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: 10.1044/2025_AJSLP-23-00474
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        Text: English
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        PageCount: 15
        StartPage: 2141
    Subjects:
      – SubjectFull: Comparative grammar
        Type: general
      – SubjectFull: Alzheimer's disease
        Type: general
      – SubjectFull: Data analysis
        Type: general
      – SubjectFull: Aphasia
        Type: general
      – SubjectFull: Stuttering
        Type: general
      – SubjectFull: Storytelling
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      – SubjectFull: Speech evaluation
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      – SubjectFull: Speech perception
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      – SubjectFull: Vocabulary
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      – SubjectFull: Task performance
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      – SubjectFull: Executive function
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      – SubjectFull: Kruskal-Wallis Test
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      – SubjectFull: Descriptive statistics
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      – SubjectFull: Mann Whitney U Test
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      – SubjectFull: Physiological aspects of speech
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      – SubjectFull: Neuropsychological tests
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      – SubjectFull: Analysis of variance
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      – SubjectFull: Statistics
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      – TitleFull: Comparing Two Connected Speech Tasks in Greek Speakers With the Logopenic Variant of Primary Progressive Aphasia and Alzheimer's Disease.
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              Text: Jul2025
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