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The Effects of Word Frequency and Word Probability on Speech Rhythm in Dysarthria.

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Title: The Effects of Word Frequency and Word Probability on Speech Rhythm in Dysarthria.
Authors: Eijk, Lotte1 l.eijk@let.ru.nl, Fletcher, Annalise2, McAuliffe, Megan3, Janse, Esther1,4
Source: Journal of Speech, Language & Hearing Research. Sep2020, Vol. 63 Issue 9, p2833-2845. 13p. 6 Charts, 3 Graphs.
Subject Terms: *Word frequency, *Language rhythm, *Dysarthria, *Speech evaluation, *Speech perception, *Data analysis, *Phonological awareness, Probability theory, English language, Regression analysis, Physiological aspects of speech, Statistics, Severity of illness index, Data analysis software, Statistical models, Descriptive statistics
Geographic Terms: New Zealand
Abstract: Purpose: In healthy speakers, the more frequent and probable a word is in its context, the shorter the word tends to be. This study investigated whether these probabilistic effects were similarly sized for speakers with dysarthria of different severities. Method: Fifty-six speakers of New Zealand English (42 speakers with dysarthria and 14 healthy speakers) were recorded reading the Grandfather Passage. Measurements of word duration, frequency, and transitional word probability were taken. Results: As hypothesized, words with a higher frequency and probability tended to be shorter in duration. There was also a significant interaction between word frequency and speech severity. This indicated that the more severe the dysarthria, the smaller the effects of word frequency on speakers’ word durations. Transitional word probability also interacted with speech severity, but did not account for significant unique variance in the full model. Conclusions: These results suggest that, as the severity of dysarthria increases, the duration of words is less affected by probabilistic variables. These findings may be due to reductions in the control and execution of muscle movement exhibited by speakers with dysarthria. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Speech, Language & Hearing Research 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: The Effects of Word Frequency and Word Probability on Speech Rhythm in Dysarthria.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Speech%2C+Language+%26+Hearing+Research%22">Journal of Speech, Language & Hearing Research</searchLink>. Sep2020, Vol. 63 Issue 9, p2833-2845. 13p. 6 Charts, 3 Graphs.
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  Data: *<searchLink fieldCode="DE" term="%22Word+frequency%22">Word frequency</searchLink><br />*<searchLink fieldCode="DE" term="%22Language+rhythm%22">Language rhythm</searchLink><br />*<searchLink fieldCode="DE" term="%22Dysarthria%22">Dysarthria</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="%22Data+analysis%22">Data analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Phonological+awareness%22">Phonological awareness</searchLink><br /><searchLink fieldCode="DE" term="%22Probability+theory%22">Probability theory</searchLink><br /><searchLink fieldCode="DE" term="%22English+language%22">English language</searchLink><br /><searchLink fieldCode="DE" term="%22Regression+analysis%22">Regression analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Physiological+aspects+of+speech%22">Physiological aspects of speech</searchLink><br /><searchLink fieldCode="DE" term="%22Statistics%22">Statistics</searchLink><br /><searchLink fieldCode="DE" term="%22Severity+of+illness+index%22">Severity of illness index</searchLink><br /><searchLink fieldCode="DE" term="%22Data+analysis+software%22">Data analysis software</searchLink><br /><searchLink fieldCode="DE" term="%22Statistical+models%22">Statistical models</searchLink><br /><searchLink fieldCode="DE" term="%22Descriptive+statistics%22">Descriptive statistics</searchLink>
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  Data: Purpose: In healthy speakers, the more frequent and probable a word is in its context, the shorter the word tends to be. This study investigated whether these probabilistic effects were similarly sized for speakers with dysarthria of different severities. Method: Fifty-six speakers of New Zealand English (42 speakers with dysarthria and 14 healthy speakers) were recorded reading the Grandfather Passage. Measurements of word duration, frequency, and transitional word probability were taken. Results: As hypothesized, words with a higher frequency and probability tended to be shorter in duration. There was also a significant interaction between word frequency and speech severity. This indicated that the more severe the dysarthria, the smaller the effects of word frequency on speakers’ word durations. Transitional word probability also interacted with speech severity, but did not account for significant unique variance in the full model. Conclusions: These results suggest that, as the severity of dysarthria increases, the duration of words is less affected by probabilistic variables. These findings may be due to reductions in the control and execution of muscle movement exhibited by speakers with dysarthria. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Speech, Language & Hearing Research 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=ehh&AN=145892568
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      – Type: doi
        Value: 10.1044/2020_JSLHR-19-00389
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      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 2833
    Subjects:
      – SubjectFull: Word frequency
        Type: general
      – SubjectFull: Language rhythm
        Type: general
      – SubjectFull: Dysarthria
        Type: general
      – SubjectFull: Speech evaluation
        Type: general
      – SubjectFull: Speech perception
        Type: general
      – SubjectFull: Data analysis
        Type: general
      – SubjectFull: Phonological awareness
        Type: general
      – SubjectFull: Probability theory
        Type: general
      – SubjectFull: English language
        Type: general
      – SubjectFull: Regression analysis
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      – SubjectFull: Physiological aspects of speech
        Type: general
      – SubjectFull: Statistics
        Type: general
      – SubjectFull: Severity of illness index
        Type: general
      – SubjectFull: Data analysis software
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      – SubjectFull: Statistical models
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      – SubjectFull: Descriptive statistics
        Type: general
      – SubjectFull: New Zealand
        Type: general
    Titles:
      – TitleFull: The Effects of Word Frequency and Word Probability on Speech Rhythm in Dysarthria.
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              M: 09
              Text: Sep2020
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              Y: 2020
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