Cited by 44Parkinson's Disease Mechanisms and TreatmentsVoice and Speech DisordersNeurobiology of Language and Bilingualism

From discourse to pathology: Automatic identification of Parkinson's disease patients via morphological measures across three languages

Open access
Eyigoz, Elif, Courson, Melody, Sedeño, Lucas, Rogg, Katharina, Orozco-Arroyave, Juan Rafael, Nöth, Elmar, Skodda, Sabine, Trujillo, Natalia +9 more·2020·Cortex

Abstract

Embodied cognition research on Parkinson's disease (PD) points to disruptions of frontostriatal language functions as sensitive targets for clinical assessment. However, no existing approach has been tested for crosslinguistic validity, let alone by combining naturalistic tasks with machine-learning tools. To address these issues, we conducted the first classifier-based examination of morphological processing (a core frontostriatal function) in spontaneous monologues from PD patients across three typologically different languages. The study comprised 330 participants, encompassing speakers of Spanish (61 patients, 57 matched controls), German (88 patients, 88 matched controls), and Czech (20 patients, 16 matched controls). All subjects described the activities they perform during a regular day, and their monologues were automatically coded via morphological tagging, a computerized method that labels each word with a part-of-speech tag (e.g., noun, verb) and specific morphological tags (e.g., person, gender, number, tense). The ensuing data were subjected to machine-learning analyses to assess whether differential morphological patterns could classify between patients and controls and reflect the former's degree of motor impairment. Results showed robust classification rates, with over 80% of patients being discriminated from controls in each language separately. Moreover, the most discriminative morphological features were associated with the patients' motor compromise (as indicated by Pearson r correlations between predicted and collected motor impairment scores that ranged from moderate to moderate-to-strong across languages). Taken together, our results suggest that morphological patterning, an embodied frontostriatal domain, may be distinctively affected in PD across languages and even under ecological testing conditions.

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  • Morphosyntactic patterns differentiated Parkinson's disease patients from healthy persons in German, Spanish and Czech, but the most discriminatory features diverged across these languages.

    “Furthermore, while morphosyntactic patterns differ entiated Parkinson's disease patients from healthy persons in German, Spanish and Czech, the most discriminatory features diverged across these languages”

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Research works printed but not linked: 2

  1. Carmona J, Cervell S, Marquez L, Martí MA, PadrO L, Placer R, … Turmo J (1998). An environment for morphosyntactic processing of unrestricted Spanish text. Proceedings of the First International Conference on Language Resources and Evaluation (LREC 98), Granada, Spain.
  2. Eyigöz E, Gildea D, & Oflazer K (2013). Simultaneous word-morpheme alignment for statistical machine translation. Paper presented at the NAACL HTL, Atlanta, Georgia, USA.

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Authors
Eyigoz, E., Courson, M., Sedeño, L., Rogg, K., Orozco-Arroyave, J. R., Nöth, E., Skodda, S., Trujillo, N., Rodríguez, M., Rusz, J., Muñoz, E., Cardona, J. F., Herrera, E., Hesse, E., Ibáñez, A., Cecchi, G., & García, A. M.
Affiliations
  • Consejo Nacional de Investigaciones Científicas y Técnicas (AR)
  • University of Würzburg (DE)
  • Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
  • Universitätsklinikum Knappschaftskrankenhaus Bochum (DE)
  • Universidad de Antioquia (CO)
  • Charles University (CZ)
  • Czech Technical University in Prague (CZ)
  • Universidad del Valle (CO)
  • Universidad Icesi (CO)
  • IBM (United States) (US)
  • Universidad de Santiago de Chile (CL)
Corresponding author
García, Adolfo M.
Venue
Cortex
Publisher
Elsevier BV
Published
2020-11
Volume
132
Pages
191-205
ISSN
0010-9452 (ISSN-L)
OpenAlex
W3084199884
Cited by
44
References
96
Citations by year
2026: 3 · 2025: 9 · 2024: 9 · 2023: 6 · 2022: 8 · 2021: 9
FWCI
2.49
Type
journal article
Language
en
Open access
Locations
  • Cortex (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • CONICET Digital (CONICET) (submittedVersion, cc-by-nc-sa)
Funders
  • Sistema General de Regalías de Colombia
  • Universidad del Valle
  • Global Brain Health Institute
  • Fondo para la Investigación Científica y Tecnológica
  • Horizon 2020
  • Alzheimer's Association (SG-20-725707-ReDLat)
  • Comisión Nacional de Investigación Científica y Tecnológica
  • Ministerstvo Zdravotnictví Ceské Republiky
  • Departamento Administrativo de Ciencia, Tecnología e Innovación
  • Rainwater Charitable Foundation
  • Universidad de Antioquia
  • Consejo Nacional de Investigaciones Científicas y Técnicas
  • Fondo Nacional de Desarrollo Científico y Tecnológico (1170010, 15150012, FONCYT-PICT 2017-1818, FONCYT-PICT 2017-1820)
  • National Institutes of Health
  • H2020 Marie Skłodowska-Curie Actions (766287)
  • National Institute on Aging (R01AG057234)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Physiology › Voice and Speech Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
Keywords
Parkinson's disease, morphological processing, embodied cognition, morphological tagging, Spanish language, German, Czech, motor impairment
MeSH terms
Machine Learning, Cognition, Humans, Language, Parkinson Disease, Speech

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