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Action verbal fluency in parkinson’s patients ; Fluência verbal de ação em pacientes com doença de Parkinson
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Referral to rehabilitation in Parkinson's disease: who, when and to what end?
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(Dys)Prosody in Parkinson’s Disease: effects of medication and disease duration on intonation and prosodic phrasing
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Abstract:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). ; The phonology of prosody has received little attention in studies of motor speech disorders. The present study investigates the phonology of intonation (nuclear contours) and speech chunking (prosodic phrasing) in Parkinson’s disease (PD) as a function of medication intake and duration of the disease. Following methods of the prosodic and intonational phonology frameworks, we examined the ability of 30 PD patients to use intonation categories and prosodic phrasing structures in ways similar to 20 healthy controls to convey similar meanings. Speech data from PD patients were collected before and after a dopaminomimetic drug intake and were phonologically analyzed in relation to nuclear contours and intonational phrasing. Besides medication, disease duration and the presence of motor fluctuations were also factors included in the analyses. Overall, PD patients showed a decreased ability to use nuclear contours and prosodic phrasing. Medication improved intonation regardless of disease duration but did not help with dysprosodic phrasing. In turn, disease duration and motor fluctuations affected phrasing patterns but had no impact on intonation. Our study demonstrated that the phonology of prosody is impaired in PD, and prosodic categories and structures may be differently affected, with implications for the understanding of PD neurophysiology and therapy. ; This research was funded by Fundação para a Ciência e Tecnologia, Portugal (Grant FCT-ANR/NEU-SCC/0005/2013, PI J.J.F.; and Grant UIDB/00214/2020, Center of Linguistics of the University of Lisbon). The APC was funded by Grant UIDB/00214/2020. ; info:eu-repo/semantics/publishedVersion
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Keyword:
Autosegmental–metrical (AM) approach; Disease duration; Intonation; Intonational phonology; Levodopa; Parkinson’s disease; Prosodic phonology; Prosodic phrasing; Prosody; Speech production
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URL: http://hdl.handle.net/10451/49541
https://doi.org/10.3390/brainsci11081100
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