08Oct 2018

ARTICULATORY STABILITY OF NON-SENSE LABIODENTAL SEQUENCES IN PERSONS WITH STUTTERING.

  • M.Sc,Lecturer in Speech Pathology, Department of Speech Language Pathology,All India Institute of Speech and Hearing, Manasagangothri, Mysore-570006.
  • B.Sc., All India Institute of Speech and Hearing,Manasagangothri,Mysore-570006.
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The study aimed at understanding the articulatory stability differences fornonsense labiodental sequences in persons with stuttering and age, gender matched typical adults. Group 1 consisted of 5 [3M,2F] Persons with Stuttering (PsWS) in the age range of 18-30 years who were diagnosed to have stuttering from a qualified Speech-Language Pathologist using Stuttering Severity Instrument. Group 2 consisted of age, gender matched typical adults. Articulograph AG501 captured the articulatory movements of Lower Lip (LL) and Jaw in the superior-inferior dimension (Z dimension). Bisyllabic labiodental sequences such as /fafa/ (unvoiced), /vava/ (voiced) and /fava/ (mixed) were used as the study stimuli. Participants were instructed to repeat the target bisyllabic nonsense labiodental sequences in their habitual speaking rate and loudness. A derived kinematic measure called ?Spatiotemporal Index? (STI) was used to analyze the articulatory stability of LL and Jaw. Additionally, the articulatory stability was also compared with the total number of behavioral disfluencies of participants for voiced and combined (voiced-unvoiced) Kannada reading passages. Comparison of mean STI scores of LL and Jaw within each of these groups revealed no significant differences between the stimuli types. Interestingly, PsWS showed greater articulatory instability of LL and Jaw for unvoiced labiodental sequences. Even though between group comparisons of STI scores were insignificant, PsWS showed greater mean STI scores than age, gender matched typical adults. Behavioral disfluencies of combined reading passage correlated positively with the articulatory stability of Jaw for the mixed (/fava/) stimuli. The obtained findings werediscussed with respect to the discoordination hypothesis and the possible implications for future research.

  1. Adams, M. R. (1978). Stuttering theory, research, and therapy: The present and future.?Journal of Fluency Disorders,?3(2), 139-147.
  2. Adams, M. R., & Hayden, P. (1976). The ability of stutterers and nonstutterers to initiate and terminate phonation during production of an isolated vowel.?Journal of Speech, Language, and Hearing Research,?19(2), 290-296.
  3. Adams, M. R., & Reis, R. (1971). The influence of the onset of phonation on the frequency of stuttering.?Journal of Speech, Language, and Hearing Research,?14(3), 639-644.
  4. Adams, M. R., & Reis, R. (1974). Influence of the onset of phonation on the frequency of stuttering: a replication and reevaluation.?Journal of Speech and Hearing Research,?17(4), 752-754.
  5. Adams, M. R., Riemenschneider, S., Metz, D., & Conture, E. (1974). Voice onset and articulatory constriction requirements in a speech segment and their relation to the amount of stuttering adaptation.?Journal of Fluency Disorders,?1(3), 23-29.
  6. Alfonso, P.J., & Van Lieshout, P.H.M.M. (1997). Spatial and temporal variability in obstruent gestural specification by stutterers and controls: Comparisons across sessions (pp. 151-160). In W. Hulstijn, H.F.M. Peters, &P.H.H.M.VanLieshout, P.H.H.M. (Eds.). Speech production: Motor control, brain research and fluency disorders. Amsterdam, The Netherlands: Elsevier Publishers.
  7. Archibald, L., & De Nil, L. F. (1999). The relationship between stuttering severity and kinesthetic acuity for jaw movements in adults who stutter.?Journal of Fluency Disorders,?24(1), 25-42.
  8. Bakker, K., &Brutten, G. J. (1990). Speech-related reaction times of stutterers and nonstutterers: Diagnostic implications. Journal of Speech and Hearing Disorders, 55, 295?299
  9. Cross, D. E., &Luper, H. L. (1979). Voice reaction time of stuttering and nonstuttering children and adults.?Journal of Fluency Disorders,?4(1), 59-77.
  10. Cross, D. E., Shadden, B. B., &Luper, H. L. (1979). Effects of stimulus ear presentation on the voice reaction time of adult stutterers and nonstutterers.?Journal of Fluency Disorders,?4(1), 45-58.
  11. Freeman, F. J., & Ushijima, T. (1978). Laryngeal muscle activity during stuttering. Journal of Speech, Language, and Hearing Research, 21(3), 538-562.
  12. Hutchinson, M. R., & Brown, D. (1978). The Adams and Reis observation revisited. Journal of Fluency Disorders, 3, 149-154.
  13. Jayaram, M. (1983). Phonetic influences on stuttering in monolingual and bilingual stutterers. Journal of Communication Disorders, 16(4), 287?297
  14. Loucks, T. M. J., De Nil, L. F., &Sasisekaran, J. (2007). Jaw-phonatory coordination in chronic developmental stuttering. Journal of Communication Disorders, 40(3), 257?272. https://doi.org/10.1016/j.jcomdis.2006.06.016
  15. MathWorks, I. (2012). MATLAB and statistics toolbox release.?Natick, MA: The MathWorks.
  16. Max, L., &Gracco, V. L. (2005). Coordination of oral and laryngeal movements in the perceptually fluent speech of adults who stutter. Journal of Speech, Language, and Hearing Research, 48(3), 524-542
  17. McClean, M. D., Kroll, R. M., & Loftus, N. S. (1990). Kinematic analysis of lip closure in stutterers? fluent speech.?Journal of Speech, Language, and Hearing Research,?33(4), 755-760.
  18. Prins, D., & Hubbard, C. P. (1990). Acoustical durations of speech segments during stuttering adaptation. Journal of Speech and Hearing Research, 33, 494?504
  19. Reich, A., Till, J., Goldsmith, H., &Prins, D. (1979). Reaction-time experiments with stuttering and nonstuttering adults. In?Paper presented at the Annual Convention of American Speech-Language-Hearing Association.
  20. Riley, G. D., & Bakker, K. (2009).?Stuttering severity instrument: SSI-4. Pro-Ed.
  21. Schwartz, M. F. (1974). The core of the stuttering block.?Journal of Speech and Hearing Disorders,?39(2), 169-177.
  22. Shapiro, A. I. (1980). An electromyographic analysis of the fluent and dysfluent utterances of several types of stutterers.?Journal of Fluency Disorders,?5(3), 203-231.
  23. Smith, A. (1989). Neural drive to muscles in stuttering. Journal of Speech, Language, and Hearing Research, 32(2), 252-264.
  24. Smith, A., Goffman, L., Zelaznik, H. N., Ying, G., &McGillem, C. (1995). Spatiotemporal stability and patterning of speech movement sequences.?Experimental Brain Research,?104(3), 493-501.
  25. Van Lieshout, P. H. H. M., Hulstijn, W., & Peters, H. F. M. (2004). Searching for the weak link in the speech production chain of people who stutter: A motor skill approach. In: B. Maassen, R. Kent, H. F. M. Peters, P. van Lieshout, & W. Hulstijn (Eds.), Speech motor control in normal and disordered speech (pp. 313?356). Oxford, UK: Oxford University Press.
  26. Venkatagiri, H. S. (1982). Reaction time for/s/and/z/in stutterers and nonstutterers: A test of discoordination hypothesis.?Journal of communication disorders,?15(1), 55-62.
  27. Watson, B. C., & Alfonso, P. J. (1983). Foreperiod and stuttering severity effects on acoustic laryngeal reaction time.?Journal of Fluency Disorders,?8(3), 183-205.
  28. Yairi, E., & Ambrose, N. G. (1999). Early childhood stuttering I: Persistency and recovery rates.?Journal of Speech, Language, and Hearing Research,?42(5), 1097-1112.
  29. Yoshioka, H., &L?fqvist, A. (1981). Laryngeal involvement in stuttering: A glottographic observation using a reaction time paradigm. Folia Phoniatrica, 33, 348?357

[Mahesh B.V.M, Jayasree G.K and Joel Joseph. (2018); ARTICULATORY STABILITY OF NON-SENSE LABIODENTAL SEQUENCES IN PERSONS WITH STUTTERING. Int. J. of Adv. Res. 6 (Oct). 703-710] (ISSN 2320-5407). www.journalijar.com

Mahesh bVM
All India Institute of Speech and Hearing

DOI:

Article DOI: 10.21474/IJAR01/7858      
DOI URL: http://dx.doi.org/10.21474/IJAR01/7858

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