How language flows when movements don’t: An automated analysis of spontaneous discourse in Parkinson’s disease
Open accessAbstract
To assess the impact of Parkinson's disease (PD) on spontaneous discourse, we conducted computerized analyses of brief monologues produced by 51 patients and 50 controls. We explored differences in semantic fields (via latent semantic analysis), grammatical choices (using part-of-speech tagging), and word-level repetitions (with graph embedding tools). Although overall output was quantitatively similar between groups, patients relied less heavily on action-related concepts and used more subordinate structures. Also, a classification tool operating on grammatical patterns identified monologues as pertaining to patients or controls with 75% accuracy. Finally, while the incidence of dysfluent word repetitions was similar between groups, it allowed inferring the patients' level of motor impairment with 77% accuracy. Our results highlight the relevance of studying naturalistic discourse features to tap the integrity of neural (and, particularly, motor) networks, beyond the possibilities of standard token-level instruments.
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Self-citation
- Authors
- García, A. M., Carrillo, F., Orozco-Arroyave, J. R., Trujillo, N., Vargas Bonilla, J. F., Fittipaldi, S., Adolfi, F., Nöth, E., Sigman, M., Fernández Slezak, D., Ibáñez, A., & Cecchi, G. A.
- Affiliations
- Consejo Nacional de Investigaciones Científicas y Técnicas (AR)
- Universidad de Antioquia (CO)
- Favaloro University (AR)
- Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
- Universidad Torcuato Di Tella (AR)
- Australian Research Council (AU)
- IBM (United States) (US)
- Corresponding author
- García, Adolfo M.
- Cecchi, Guillermo A.
- ORCID
- Venue
- Brain and Language
- Publisher
- Elsevier BV
- Published
- 2016-11
- Volume
- 162
- Pages
- 19-28
- ISSN
- 0093-934X (ISSN-L)
- OpenAlex
- W2503328419
- Cited by
- 144
- References
- 86
- Citations by year
- 2026: 7 · 2025: 14 · 2024: 11 · 2023: 16 · 2022: 7 · 2021: 7 · 2020: 30 · 2019: 26 · 2018: 11 · 2017: 13 · 2016: 2
- FWCI
- 11.00
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Brain and Language (publishedVersion)
- PubMed (publishedVersion)
- Americanae (AECID Library) (submittedVersion, cc-by-nc-nd)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, cc-by-nc-nd)
- CONICET Digital (CONICET) (submittedVersion, cc-by-nc-sa)
- Funders
- CONICET
- UBA
- CONICYT/FONDECYT (1130920)
- COLCIENCIAS (1115-569-33858, 1115-545-31374)
- FONCyT-PICT (2012-0412, 2012-1309, 2013-1794)
- FONDAP (15150012)
- INECO Foundation
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Health Sciences › Medicine › Physiology › Voice and Speech Disorders
- Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
- Keywords
- Parkinson's disease, spontaneous discourse, monologue, latent semantic analysis, part-of-speech tagging, graph embedding, word repetition, grammatical complexity, motor impairment
- MeSH terms
- Female, Humans, Male, Middle Aged, Motor Skills, Movement, Nerve Net, Parkinson Disease, Semantics, Speech, Case-Control Studies
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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