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Neurosci."],"abstract":"<jats:sec><jats:title>Aim<\/jats:title><jats:p>The present work proposes the study of the neuromotor activity of the masseter-jaw-tongue articulation during diadochokinetic exercising to establish functional statistical relationships between surface Electromyography (sEMG), 3D Accelerometry (3DAcc), and acoustic features extracted from the speech signal, with the aim of characterizing Hypokinetic Dysarthria (HD). A database of multi-trait signals of recordings from an age-matched control and PD participants are used in the experimental study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Hypothesis:<\/jats:title><jats:p>The main assumption is that information between sEMG and 3D acceleration, and acoustic features may be quantified using linear regression methods.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Recordings from a cohort of eight age-matched control participants (4 males, 4 females) and eight PD participants (4 males, 4 females) were collected during the utterance of a diadochokinetic exercise (the fast repetition of diphthong [aI]). The dynamic and acoustic absolute kinematic velocities produced during the exercises were estimated by acoustic filter inversion and numerical integration and differentiation of the speech signal. The amplitude distributions of the absolute kinematic and acoustic velocities (AKV and AFV) are estimated to allow comparisons in terms of Mutual Information.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The regression results show the relationships between sEMG and dynamic and acoustic estimates. The projection methodology may help in understanding the basic neuromotor muscle activity regarding neurodegenerative speech in remote monitoring neuromotor and neurocognitive diseases using speech as the vehicular tool, and in the study of other speech-related disorders. The study also showed strong and significant cross-correlations between articulation kinematics, both for the control and the PD cohorts. The absolute kinematic variables presents an observable difference for the PD participants compared to the control group.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Kinematic distributions derived from acoustic analysis may be useful biomarkers toward characterizing HD in neuromotor disorders providing new insights into PD.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fnhum.2021.622825","type":"journal-article","created":{"date-parts":[[2021,3,15]],"date-time":"2021-03-15T05:04:03Z","timestamp":1615784643000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":5,"title":["A Neuromotor to Acoustical Jaw-Tongue Projection Model With Application in Parkinson\u2019s Disease Hypokinetic Dysarthria"],"prefix":"10.3389","volume":"15","author":[{"given":"Andr\u00e9s","family":"G\u00f3mez","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pedro","family":"G\u00f3mez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Palacios","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Victoria","family":"Rodellar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V\u00edctor","family":"Nieto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Agust\u00edn","family":"\u00c1lvarez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Athanasios","family":"Tsanas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2021,3,15]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"38","DOI":"10.1016\/j.specom.2019.01.005","article-title":"OPENGLOT-An open environment for the evaluation of glottal inverse filtering.","volume":"107","author":"Alku","year":"2019","journal-title":"Speech Commun."},{"key":"B2","doi-asserted-by":"crossref","DOI":"10.1109\/ACCESS.2021.3057715","article-title":"Smartphone speech testing for symptom assessment in rapid eye movement sleep behavior disorder and Parkinson\u2019s disease.","author":"Arora","year":"2021","journal-title":"IEEE Access"},{"key":"B3","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0151327","article-title":"High-Resolution, non-invasive imaging of upper vocal tract articulators compatible with human brain recordings.","volume":"11","author":"Bourchard","year":"2016","journal-title":"PLoS One"},{"key":"B4","doi-asserted-by":"publisher","first-page":"303","DOI":"10.1007\/s00702-017-1676-0","article-title":"Speech Disorders in Parkinson\u2019s disease: early diagnostics and effects on medication in brain stimulation.","volume":"124","author":"Brabenec","year":"2017","journal-title":"J. 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