Temporal parameters of voiceless stops in a speaker with broca's aphasia and apraxia of speech: a single case study
DOI:
https://doi.org/10.1344/phonica.2021.17.27-49Keywords:
Stops, Acoustics, Aphasia, Broca, DurationAbstract
This study analyses several temporal parameters of voiceless stops [p, t, k] in the spontaneous speech of a speaker with Broca’s aphasia and apraxia of speech at three different moments of his language impairment. The main goal is to determine how damaged these sounds are in relation to their realisation without pathology, as well as to outline their evolution after twenty-two months of therapy. The variables studied have been the duration of the selected consonants, their closure duration and voice-onset time (VOT) duration. Statistical results reveal that temporal parameters show higher values than those found in speakers without language disorder, and that values tend to decrease with rehabilitation, especially for the bilabial realisation. Temporal variations depend upon place of articulation and voicing maintenance or weakening. Moreover, it was also found that the main improvements took place during spontaneous recovery, and that the bilabial realisation differs from the alveolar and velar ones in terms of acoustic characterization, since the former shows higher durational values, as well as more significant improvements.
References
Asensi, L., Portolés, S. & Río, A. del. (1997). Barra de explosión, VOT y frecuencia de las oclusivas sordas del castellano. Estudios de fonética experimental, 9, 221-242.
Basilakos, A. (2018). Contemporary approaches to management of post-stroke apraxia of speech. Seminars in Speech and Language, 39 (1), 25-36. https://doi.org/10.1055/s-0037-1608853
Basso, A. (1992). Prognostic factors in aphasia. Aphasiology, 6 (4), 337-348. http://dx.doi.org/10.1080/02687039208248605
Basso, A. (2003). Aphasia and its therapy. Oxford University Press.
Basso, A., Capitani, E. & Vignolo, L. A. (1979). Influence of rehabilitation on language skills in aphasic patients: A controlled study. JAMA Neurology, 36 (4), 190-196. https://doi.org/10.1001/archneur.1979.00500400044005
Baum, S. R. & Ryan, L. (1993). Rate of speech effects in aphasia: Voice onset time. Brain and Language, 44 (4), 431-445. https://doi.org/10.1006/brln.1993.1026
Baum, S. R., Blumstein, S. E., Naeser, M. A., & Palumbo, C. L. (1990). Temporal dimensions of consonant and vowel production: An acoustic and CT scan analysis of aphasic speech. Brain and Language, 39 (1), 33-56. https://doi.org/10.1016/0093-934X(90)90003-Y
Blumstein, S. E. (1998). Phonological aspects of aphasia. In M. Taylor Sarno (Ed.), Acquired aphasia (3rd ed., pp. 157-185). https://doi.org/10.1016/B978-012619322-0/50008-7
Blumstein, S. E., Cooper, W. E., Goodglass, H., Statlender, S. & Gottlieb, J. (1980). Production deficits in aphasia: A voice-onset time analysis. Brain and Language, 9 (2), 153-170. https://doi.org/10.1016/0093-934X(80)90137-6
Boersma, P. & Weenink, D. (2019). Praat: Doing phonetics by computer (Version 6.1.05) [Computer program]. University of Amsterdam. Retrieved from http://www.praat.org
Castañeda Vicente, M. L. (1986). El V.O.T de las oclusivas sordas y sonoras españolas. Estudios de fonética experimental, 2, 91-110.
Gibson, M., Fernández Planas, A. M., Gafos, A. & Remirez, E. (2015). Consonant duration and VOT as a function of syllable complexity and voicing in a sub-set of Spanish clusters. INTERSPEECH-2015, 1690-1694. https://doi.org/10.21437/Interspeech.2015-389
Gibson, M., Sotiropoulou, S., Tobin, S. & Gafos, A. I. (2019). Temporal aspects of word initial single consonants and consonants in clusters in Spanish. Phonetica, 76 (6), 448-478. https://doi.org/10.1159/000501508
González Lázaro, P. & González Ortuño, B. (2012). Afasia: De la teoría a la práctica. Editorial Médica Panamericana.
Gorno Tempini, M. L. & Santos Santos M. Á. (2015). Primary progressive aphasia. In A. Toga (Ed.), Brain mapping. An encyclopedic reference (Vol. 3, pp. 653-663). https://doi.org/10.1016/B978-0-12-397025-1.00074-9
Helm-Estabrooks, N. & Albert, M. L. (2005). Manual de la afasia y de terapia de la afasia (2nd ed.). Editorial Médica Panamericana.
Hidalgo Navarro, A. & Quilis Merín, M. (2004). Fonética y fonología españolas (2nd ed.). Tirant Lo Blanch.
Jakobson, R. (1974). Lenguaje infantil y afasia (Translated from: Langage enfantin et aphasie). Ayuso. (Original published in 1969).
Machuca, M. J. (1997). Las obstruyentes no continuas del español: Relación entre las categorías fonéticas y fonológicas en habla espontánea [PhD dissertation, Universidad Autónoma de Barcelona]. Retrieved from https://ddd.uab.cat/record/37091
Marczyk, A. K. (2015). Déficits de la composante phonético-phonologique dans l'aphasie et stratégies compensatoires: Analyse acoustique et perceptive de productions consonantiques de sujets hispanophones [PhD dissertation, Universidad Autónoma de Barcelona]. Retrieved from https://ddd.uab.cat/record/165717
Marczyk, A. & Baqué, L. (2015). Predicting segmental substitution errors in aphasic patients with phonological and phonetic encoding impairments. Loquens, 2 (2). https://doi.org/10.3989/loquens.2015.023
Marczyk, A. & Machuca, M. J. (2018). Temporal control in the voicing contrast: Evidence from surgery-related apraxia of speech. Clinical Linguistics & Phonetics, 32 (2), 148-165. https://doi.org/10.1080/02699206.2017.1334091
Martínez Celdrán, E. (1993). La percepción categorial de /b-p/ en español basada en las diferencias de duración. Estudios de fonética experimental, 5, 223-239.
Martínez Celdrán, E. (1997). La duración de la nasal precedente como índice de la tensión de las oclusivas españolas. In R. Escavy Zamora, E. Hernández Sánchez, J. M. Hernández Terrés & M. I. López Martínez (Eds.), Homenaje al profesor A. Roldán Pérez (Vol. 1, pp. 331-339). Universidad de Murcia.
Martínez Celdrán, E. & Fernández Planas, A. M. (2007). Manual de fonética española. Articulaciones y sonidos del español. Ariel.
Miller, J. L., Green, K. P. & Reeves, A. (1986). Speaking rate and segments: A look at the relation between speech production and speech perception for the voicing contrast. Phonetica, 43 (1-3), 106-115. https://doi.org/10.1159/000261764
National Institute of Deafness and Other Communication Disorders (2017, October). Apraxia del habla. U.S. Department of Health and Human Services, National Institutes of Health. Retrieved in February 2020 from https://www.nidcd.nih.gov/es/espanol/apraxia-speech
Papathanasiou, I., Coopens, P. & Davidson, B. (2017). Aphasia and related neurogenic communication disorders: Basic concepts, management, and efficacy. In I. Papathanasiou and P. Coopens (Eds.), Aphasia and related neurogenic communication disorders (2nd ed., pp. 3-14). Jones & Barlett Learning.
Potagas, C., Kasselimis, D. S. & Evdokimidis, I. (2017). Elements of neurology essential for understanding the aphasias. In I. Papathanasiou and P. Coopens (Eds.), Aphasia and related neurogenic communication disorders (2nd ed., pp. 37-61). Jones & Barlett Learning.
Prins, R. S., Snow, C. E. & Wagenaar, E. (1978). Recovery from aphasia: Spontaneous speech versus language comprehension. Brain and Language, 6 (2), 192-211. https://doi.org/10.1016/0093-934X(78)90058-5
Quilis, A. (1981). Fonética acústica de la lengua española. Gredos.
RStudio Team. (2015). RStudio: Integrated Development Environment for R. Boston, MA: RStudio, Inc. [Computer program]. Retrieved from http://www.rstudio.com
Taylor Sarno, M. (1998). Recovery and rehabilitation in aphasia. In M. Taylor Sarno (Ed.), Acquired aphasia (3rd ed., p. 595-631). https://doi.org/10.1016/B978-012619322-0/50008-7
Tsiara, J. (2019). Analysis of VOT in Greek patients with non-fluent aphasia [Master’s thesis, Universiteit van Amsterdam]. UvA Scripties. Retrieved from https://scripties.uba.uva.nl/search?id=696062
Tuller, B. (1984). On categorizing aphasic speech errors. Neuropsychologia, 22 (5), 547-557. https://doi.org/10.1016/0028-3932(84)90019-8
Williams, S. E. & Seaver, E. J. (1986). A comparison of speech sound durations in three syndromes of aphasia. Brain and Language, 29 (1), 171-182. https://doi.org/10.1016/0093-934X(86)90041-6
Worrall, L., Sherratt, S. & Papathanasiou, I. (2017). Therapy approaches to aphasia. In I. Papathanasiou and P. Coopens (Eds.), Aphasia and related neurogenic communication disorders (2nd ed., pp. 109-127). Jones & Barlett Learning.
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