Lingual protrusion and elevation in lingual dystonia: A hypothesis

Auteurs-es

  • Allyson D. Dykstra Doctoral Program in Rehabilitation Sciences, University of Western Ontario, London, Ont., Canada
  • Scott G. Adams School of Communication Sciences and Disorders, University of Western Ontario, London, Ont., Canada
  • Mandar Jog Department of Clinical Neurosciences, University of Western Ontario, London, Ont., Canada

Mots-clés :

Acoustic arrays, Computer programming, Computer software, Error analysis, Frequency response, Spectroscopic analysis, Speech analysis, Lingual protrusion, Lingual-fractive spectra, Phonetic errors, Time frequency response (TFR)

Résumé

The speech deficits associated with lingual dystonia were analyzed using acoustic analyses. Acoustic analysis focusing on lingual-fractive spectra was conducted using spectrographic displays by the time frequency response (TFR) software program to investigate the hypothesis of abnormal lingual fronting and elevation. A prominent phonetic error was the misperception of the palatial fricative for the alveolar fricative. It was found that a common feature of lingual dystonic contractions involve lingual fronting and lingual elevation during speech production.

Fichiers supplémentaires

Publié-e

2005-09-01

Comment citer

1.
Dykstra AD, Adams SG, Jog M. Lingual protrusion and elevation in lingual dystonia: A hypothesis. Canadian Acoustics [Internet]. 1 sept. 2005 [cité 10 mai 2026];33(3):98-9. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1763

Numéro

Vol. 33 No. 3 (2005)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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