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Abstract #2843

Study of Articulatory Movement from the Single Slice Dynamic Imaging of the Vocal Tract in Parkinsonism

S. Senthil Kumaran1, Sunita Gudwani1, Mohit Saxena2, Madhuri Behari2

1Department of NMR, All India Institute of Medical Sciences, New Delhi, Delhi, India; 2Department of Neurology, All India Institute of Medical Sciences, New Delhi, Delhi, India

Parkinsonism is a degenerative motor disorder where speech production is affected early prior to other voluntary motor functions. Due to this perceptual feature the communication becomes difficult progressively debilitating quality of life of the subject. Clinically assessment of vocal tract dynamics and acoustic analysis are essential for planning management. This study explores the use of single slice real time trufi sequence dynamic MR images as a diagnostic tool for spatial and temporal vocal tract shaping.

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Keywords

acoustic acquisition added adequate affricate aloud although alveolar analyze aperture articulation articulators articulatory audio axial bandwidth better binocular body channel clinical coil combination compatible completed concordance consonant consonants constriction contact control coordination cord correlated disorder displacements distance done double dynamic dynamics earlier elevation epiglottis equal features frame frames freq frication gave give goggles groove grooving head headphones healthy imprecise improper incomplete inside institute intensity invasive kinematic laryngeal larynx location many medical movement movements muscle nasal nasality native natural neurology neutral next opening output outside palate perceptual performance pharyngeal pixel pollack position precision processed production productions progressive read real recorder recording reduced release relevant reported reports representative representing resolution revealed rigidity scanner sciences shaping short significantly slice slow software sound spatial speakers spectrogram speech stimuli stop studied studies subject subjects sufficient syllable syllables system temporal till tongue tract valuable velar verbal vibration view visual visualize vocal voice voiced voiceless voicing vowel years