Compensatory mechanisms in apraxic speech. Preliminary acoustic evidence for the interaction between nasality and voicing

Anna Marczyk Melissa Redford 1 Yohann Meynadier 2 Yulia Gaydina 2 Maria-Josep Solé 3
1 University of Oregon [Eugene]
2 LPL - Laboratoire Parole et Langage
3 UAB - Universitat Autònoma de Barcelona [Barcelona]
Abstract : This paper is concerned with the phonetic realization of the voicing contrast by two Spanish speakers with surgery-related apraxia of speech and two matched control speakers. Specifically, it examines whether speakers with AOS, widely reported to have a deficit in laryngeal control, use nasal leak as a compensatory mechanism aimed at facilitating the initiation of voicing in word-initial stops. The results show that apraxic speakers produce prevoicing in /b d g/ in only 1/3 of the cases (correctly identified as ‘voiced’). In these cases, however, they exhibit significantly longer prevoicing than control subjects; a longer voiced portion is closely related to a longer nasal murmur in the two apraxic speakers. These results suggest compensation strategies by apraxic subjects to achieve voicing. Differences in the intensity patterns of nasal and voiced stops indicate that apraxic speakers control the timing of velopharyngeal gesture, suggesting that apraxia is a selective impairment.
Keywords : Phonetic factors Spanish Laryngeal control
Document type :
Conference papers
Complete list of metadatas
https://hal-amu.archives-ouvertes.fr/hal-01979047
Contributor : Yohann Meynadier <>
Submitted on : Saturday, January 12, 2019 - 1:53:11 PM
Last modification on : Friday, May 17, 2019 - 4:52:15 PM
Long-term archiving on : Saturday, April 13, 2019 - 12:42:32 PM

File

Marcyl_ISSP_2017_abstract.pdf
Files produced by the author(s)

Identifiers

Collections

UNIV-AMU | LPL-AIX | ILCB

Citation

Anna Marczyk, Melissa Redford, Yohann Meynadier, Yulia Gaydina, Maria-Josep Solé. Compensatory mechanisms in apraxic speech. Preliminary acoustic evidence for the interaction between nasality and voicing. 11th International Seminar in Speech Production (ISSP), Oct 2017, Tianjin, China. ⟨10.1055/s-2002-35798⟩. ⟨hal-01979047⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

21

Files downloads

15

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD