Anticipatory coarticulation of the Spanish alveolar fricative /s/ in adults with apraxia versus dysarthria
This acoustic study compares anticipatory coarticulation characteristics of the Spanish alveolar sibilant fricative /s/ when in utterance-initial position followed by a vowel in adults with dysarthria and apraxia of speech. Three groups of participants (28 individuals with no speech disorder, 20 wi...
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| Format: | Article |
| Language: | English |
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University of Castilla La Mancha; Complutense University of Madrid; Association of Speech and Language Therapist of Castilla La Mancha
2024-01-01
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| Series: | Revista de Investigación en Logopedia |
| Subjects: | |
| Online Access: | https://revistas.ucm.es/index.php/RLOG/article/view/88505 |
| _version_ | 1797323950827503616 |
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| author | Natalia Melle José María Lahoz-Bengoechea Carlos Gallego Silvia Nieva |
| author_facet | Natalia Melle José María Lahoz-Bengoechea Carlos Gallego Silvia Nieva |
| author_sort | Natalia Melle |
| collection | DOAJ |
| description |
This acoustic study compares anticipatory coarticulation characteristics of the Spanish alveolar sibilant fricative /s/ when in utterance-initial position followed by a vowel in adults with dysarthria and apraxia of speech. Three groups of participants (28 individuals with no speech disorder, 20 with dysarthria, and 8 with apraxia of speech) produced 12 monosyllabic words that included the five vowel sounds of central-peninsular Spanish. The acoustic measurements compared within and between groups were frequency of the spectral intensity peak (FreqMid) in different zones of fricative execution, magnitude of the change in frequency of the spectral intensity peak (ΔFreq) in the end zone compared to the average of the initial and middle zones, first three spectral moments, and the difference in spectral center of gravity between the middle and end zones (DiffM-E CoG). Several of these measures were able to differentiate between dysarthric and healthy speech, especially when /s/ was followed by an unrounded vowel, and the same occurred for apraxia, but this time when the adjacent vowel was rounded. While both disorders showed similar spectral patterns, the two motor speech disorders differed in terms of the measures FreqMid and DiffM-E CoG. Possible explanations for these differences are here discussed within the framework of motor control models.
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| first_indexed | 2024-03-08T05:36:24Z |
| format | Article |
| id | doaj.art-ef3342c910c446f7920e43d0f4c19610 |
| institution | Directory Open Access Journal |
| issn | 2174-5218 |
| language | English |
| last_indexed | 2024-03-08T05:36:24Z |
| publishDate | 2024-01-01 |
| publisher | University of Castilla La Mancha; Complutense University of Madrid; Association of Speech and Language Therapist of Castilla La Mancha |
| record_format | Article |
| series | Revista de Investigación en Logopedia |
| spelling | doaj.art-ef3342c910c446f7920e43d0f4c196102024-02-05T22:19:10ZengUniversity of Castilla La Mancha; Complutense University of Madrid; Association of Speech and Language Therapist of Castilla La ManchaRevista de Investigación en Logopedia2174-52182024-01-0114110.5209/rlog.88505Anticipatory coarticulation of the Spanish alveolar fricative /s/ in adults with apraxia versus dysarthriaNatalia Melle0José María Lahoz-Bengoechea 1Carlos Gallego 2Silvia Nieva 3Universidad Complutense de MadridUniversidad Complutense de MadridUniversidad Complutense de MadridUniversidad Complutense de Madrid This acoustic study compares anticipatory coarticulation characteristics of the Spanish alveolar sibilant fricative /s/ when in utterance-initial position followed by a vowel in adults with dysarthria and apraxia of speech. Three groups of participants (28 individuals with no speech disorder, 20 with dysarthria, and 8 with apraxia of speech) produced 12 monosyllabic words that included the five vowel sounds of central-peninsular Spanish. The acoustic measurements compared within and between groups were frequency of the spectral intensity peak (FreqMid) in different zones of fricative execution, magnitude of the change in frequency of the spectral intensity peak (ΔFreq) in the end zone compared to the average of the initial and middle zones, first three spectral moments, and the difference in spectral center of gravity between the middle and end zones (DiffM-E CoG). Several of these measures were able to differentiate between dysarthric and healthy speech, especially when /s/ was followed by an unrounded vowel, and the same occurred for apraxia, but this time when the adjacent vowel was rounded. While both disorders showed similar spectral patterns, the two motor speech disorders differed in terms of the measures FreqMid and DiffM-E CoG. Possible explanations for these differences are here discussed within the framework of motor control models. https://revistas.ucm.es/index.php/RLOG/article/view/88505acoustic analysisanticipatory coarticulationapraxia of speechdifferential diagnosticdysarthriafricative |
| spellingShingle | Natalia Melle José María Lahoz-Bengoechea Carlos Gallego Silvia Nieva Anticipatory coarticulation of the Spanish alveolar fricative /s/ in adults with apraxia versus dysarthria Revista de Investigación en Logopedia acoustic analysis anticipatory coarticulation apraxia of speech differential diagnostic dysarthria fricative |
| title | Anticipatory coarticulation of the Spanish alveolar fricative /s/ in adults with apraxia versus dysarthria |
| title_full | Anticipatory coarticulation of the Spanish alveolar fricative /s/ in adults with apraxia versus dysarthria |
| title_fullStr | Anticipatory coarticulation of the Spanish alveolar fricative /s/ in adults with apraxia versus dysarthria |
| title_full_unstemmed | Anticipatory coarticulation of the Spanish alveolar fricative /s/ in adults with apraxia versus dysarthria |
| title_short | Anticipatory coarticulation of the Spanish alveolar fricative /s/ in adults with apraxia versus dysarthria |
| title_sort | anticipatory coarticulation of the spanish alveolar fricative s in adults with apraxia versus dysarthria |
| topic | acoustic analysis anticipatory coarticulation apraxia of speech differential diagnostic dysarthria fricative |
| url | https://revistas.ucm.es/index.php/RLOG/article/view/88505 |
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