A preliminary application of principal components and cluster analysis to internal tongue deformation patterns.

Computer Methods in Biomechanics and Biomedical Engineering
Maureen StoneJerry L Prince

Abstract

Complex patterns of muscle contractions create gross tongue motion during speech. It is of scientific and medical importance to better understand speech motor strategies and variations due to language or disorders. Dense patterns of tongue motion can be imaged using tagged magnetic resonance imaging, but characterisation of motion strategies is difficult using visualisation alone. This paper explores the use of principal component analysis for dimensionality reduction and cluster analysis for tongue motion categorisation. Velocity fields were acquired and analysed from midsagittal tongue slices during motion from /i/ to /u/ for eight datasets containing multiple languages and a glossectomy patient. The analyses were carried out on the tongue-only and tongue-plus-floor of the mouth regions. The results showed that both the analyses were sensitive to region size and that cluster analysis was harder to interpret. Both the analyses grouped the Japanese speaker with the glossectomy patient, which although explicable with biologically plausible reasons, highlights the limitations of extensive data reduction.

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Citations

Jun 2, 2014·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Andrew D ScottMarc E Miquel
Oct 4, 2012·IEEE Transactions on Bio-medical Engineering·Jonghye WooJerry L Prince
Aug 27, 2014·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·Junghoon LeeJerry L Prince
Jun 18, 2015·Computer Methods in Biomechanics and Biomedical Engineering. Imaging & Visualization·Jonghye WooJerry L Prince
Oct 14, 2014·Computer Methods in Biomechanics and Biomedical Engineering. Imaging & Visualization·Maureen StoneJerry L Prince
Oct 16, 2012·Computer Methods in Biomechanics and Biomedical Engineering·Devrim UnayMaureen Stone
Jun 1, 2017·Computer Methods in Biomechanics and Biomedical Engineering·P LosleverP Pudlo
Sep 12, 2013·Journal of Speech, Language, and Hearing Research : JSLHR·Maureen StoneJerry L Prince
Jun 14, 2016·Journal of Speech, Language, and Hearing Research : JSLHR·Fangxu XingJerry L Prince
Jul 3, 2019·Journal of Speech, Language, and Hearing Research : JSLHR·Fangxu XingJonghye Woo
Jul 24, 2018·Computer Methods in Biomechanics and Biomedical Engineering. Imaging & Visualization·Jonghye WooJerry L Prince
Jul 20, 2017·The British Journal of Nutrition·Anna RiedlJakob Linseisen
Jul 10, 2021·The Journal of the Acoustical Society of America·Christina HagedornShrikanth S Narayanan

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