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ERIC Number: EJ1478121
Record Type: Journal
Publication Date: 2025-Jul
Pages: 12
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1368-2822
EISSN: EISSN-1460-6984
Available Date: 2025-07-08
Speech Characteristics across Motor Subtypes of Parkinson's Disease
Vanessa Brzoskowski dos Santos1; Amanda Lara Bressanelli1; Fernanda Venzke Zardin2; Rui Rothe-Neves3; Maira Rozenfeld Olchik1,4,5
International Journal of Language & Communication Disorders, v60 n4 e70081 2025
Background: Speech differences may occur between motor subtypes of Parkinson's disease (PD), but the literature remains limited. Aims: Examine speech characteristics in individuals with PD across the tremor-dominant, nontremor-dominant and mixed subtypes comparing to healthy controls. Methods and Procedures: A total of 115 individuals with PD were included in the study, classified as tremor-dominant (n = 61), nontremor-dominant (n = 39) and mixed (n = 15) subtypes according to the Movement Disorder Society -- Unified Parkinson's Disease Rating Scale. The control group (CG) consisted of 15 individuals. Speech samples were collected through sustained vowel /a/, diadochokinesis (/pataka/), and monologue and were analysed using both auditory perceptual and acoustic analyses. Outcomes and Results: In the diadochokinesis and monologue task, the nontremor-dominant subtype showed shorter production time and, consequently, produced fewer syllables than the CG. The mixed subtype, on the other hand, did not differ from the CG and performed similarly across all tasks. However, the average duration of the syllables in the monologue task significantly differed between the mixed and nontremor-dominant subtypes. Conclusions and Implications: There are speech variations among PD motor subtypes. The nontremor-dominant subtype exhibited poorer speech performance, while the mixed subtype's speech patterns were more similar to those of the CG.
Wiley. Available from: John Wiley & Sons, Inc. 111 River Street, Hoboken, NJ 07030. Tel: 800-835-6770; e-mail: cs-journals@wiley.com; Web site: https://www.wiley.com/en-us
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: 1Postgraduate Program in Medicine, Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; 2Undergraduate in Speech-Language Pathology, Universidade do Rio Grande do Sul, Porto Alegre, RS, Brazil; 3Phonetics Lab, Faculdade de Letras, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; 4Neurology Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; 5Department of Surgery and Orthopedics, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil