On the Explainability of Speech Impairment Regarding Dysarthria Progression in Parkinson’s Disease
Gallo-Aristizábal JD, Ríos-Urrego CD, Escobar-Grisales D, Mercado-Agudelo JF, Orozco-Arroyave JR (2027)
Publication Type: Conference contribution
Publication year: 2027
Journal
Publisher: Springer Science and Business Media Deutschland GmbH
Book Volume: 16940 LNCS
Pages Range: 466-477
Conference Proceedings Title: Lecture Notes in Computer Science
Event location: Brno, CZE
ISBN: 9783032372482
DOI: 10.1007/978-3-032-37249-9_38
Abstract
Parkinson’s disease (PD) commonly affects speech motor control and is often associated with hypokinetic dysarthria, characterized by impairments in articulation, phonation, and prosody, which may reduce speech intelligibility. Most studies on speech analysis in PD have primarily focused on differentiating between patients with PD and healthy control (HC) subjects. Additionally, there has been limited research on evaluating disease severity while also considering the interpretability of linguistic information. Therefore, this work explores whether self-supervised speech representations can support the automatic assessment of dysarthria severity using the modified Frenchay Dysarthria Assessment (mFDA). wav2vec2.0 embeddings were extracted from read-text recordings and grouped at different temporal and linguistic granularities, including frame, phoneme, phoneme-transition, syllable, word, sentence, and subject levels, using forced alignment. Results balanced accuracy values between 50.4% and 54.1%, exceeding the chance level of 25%. In addition, the analysis of specific linguistic units and phonological classes supports the idea that severity-related information is concentrated in articulatory patterns involving plosives, fricatives, nasals, and consonant-vowel transitions, where fine control of articulators such as lips, tongue, and velum is required.
Involved external institutions
Colombia (CO)How to cite
APA:
Gallo-Aristizábal, J.D., Ríos-Urrego, C.D., Escobar-Grisales, D., Mercado-Agudelo, J.F., & Orozco-Arroyave, J.R. (2027). On the Explainability of Speech Impairment Regarding Dysarthria Progression in Parkinson’s Disease. In Elmar Nöth, Aleš Horák, Petr Sojka (Eds.), Lecture Notes in Computer Science (pp. 466-477). Brno, CZE: Springer Science and Business Media Deutschland GmbH.
MLA:
Gallo-Aristizábal, Jeferson David, et al. "On the Explainability of Speech Impairment Regarding Dysarthria Progression in Parkinson’s Disease." Proceedings of the 29th International Conference on Text, Speech, and Dialogue, TSD 2026, Brno, CZE Ed. Elmar Nöth, Aleš Horák, Petr Sojka, Springer Science and Business Media Deutschland GmbH, 2027. 466-477.
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