Observations of perseverative coarticulation in lateral approximants using MRI

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recent advances in real-time magnetic resonance imaging (rt- MRI) make possible the following study of post-dorsal coarticulatory effects on lateral approximants in running speech. As the MRI is particularly well-suited for investigating pharyngeal articulations, it was capable of capturing perseverative coarticulation from a low central vowel to the immediately following syllable-initial lateral approximant. The lowered and retracted tongue body position associated with a low central vowel is articulatorily equivalent to a pharyngeal constriction [1]. We show here that rt-MRI techniques can track coarticulation direction by calculating the average pixel intensity [2] within a region of interest in MR images as a function of time.

Original languageEnglish (US)
Title of host publicationContributions to the 14th Annual Conference on Speech Communication (Interspeech), Lyon, France
Pages612-616
Number of pages5
StatePublished - 2013

Fingerprint

Magnetic resonance imaging
Lateral
Magnetic Resonance Imaging
Magnetic resonance
Region of Interest
Immediately
Pixel
Pixels
Real-time
Imaging techniques
Observation
Central Vowels
Coarticulation
Speech
Tongue
Articulation

Keywords

  • Lateral approximants
  • Magnetic resonance
  • Pharynx
  • Tigrinya

ASJC Scopus subject areas

  • Language and Linguistics
  • Human-Computer Interaction
  • Signal Processing
  • Software
  • Modeling and Simulation

Cite this

Wong, N., Fu, M., Liang, Z. P., Shosted, R. K., & Sutton, B. P. (2013). Observations of perseverative coarticulation in lateral approximants using MRI. In Contributions to the 14th Annual Conference on Speech Communication (Interspeech), Lyon, France (pp. 612-616)

Observations of perseverative coarticulation in lateral approximants using MRI. / Wong, Nicole; Fu, Maojing; Liang, Zhi Pei; Shosted, Ryan K.; Sutton, Bradley P.

Contributions to the 14th Annual Conference on Speech Communication (Interspeech), Lyon, France. 2013. p. 612-616.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wong, N, Fu, M, Liang, ZP, Shosted, RK & Sutton, BP 2013, Observations of perseverative coarticulation in lateral approximants using MRI. in Contributions to the 14th Annual Conference on Speech Communication (Interspeech), Lyon, France. pp. 612-616.
Wong N, Fu M, Liang ZP, Shosted RK, Sutton BP. Observations of perseverative coarticulation in lateral approximants using MRI. In Contributions to the 14th Annual Conference on Speech Communication (Interspeech), Lyon, France. 2013. p. 612-616
Wong, Nicole ; Fu, Maojing ; Liang, Zhi Pei ; Shosted, Ryan K. ; Sutton, Bradley P. / Observations of perseverative coarticulation in lateral approximants using MRI. Contributions to the 14th Annual Conference on Speech Communication (Interspeech), Lyon, France. 2013. pp. 612-616
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