Dysarthria in Friedreich's ataxia: A perceptual analysis

Folker, Joanne, Murdoch, Bruce, Cahill, Louise, Delatycki, Martin, Corben, Louise and Vogel, Adam (2010) Dysarthria in Friedreich's ataxia: A perceptual analysis. Folia Phoniatrica et Logopaedica, 62 3: 97-103. doi:10.1159/000287207

Author Folker, Joanne
Murdoch, Bruce
Cahill, Louise
Delatycki, Martin
Corben, Louise
Vogel, Adam
Title Dysarthria in Friedreich's ataxia: A perceptual analysis
Journal name Folia Phoniatrica et Logopaedica   Check publisher's open access policy
ISSN 1021-7762
Publication date 2010-04
Sub-type Article (original research)
DOI 10.1159/000287207
Volume 62
Issue 3
Start page 97
End page 103
Total pages 7
Place of publication Basel, Switzerland
Publisher S. Karger AG
Collection year 2011
Language eng
Abstract The aims of this study were to: (1) evaluate the perceptual speech dimensions, speech intelligibility and dysarthria severity of a group of individuals diagnosed with Friedreich's ataxia (FRDA); (2) determine the presence of subgroups within FRDA dysarthria; (3) investigate the relationship between the speech outcome and the clinical factors of disease progression. The study included 38 individuals (21 female, 17 male) with a confirmed diagnosis of FRDA. A group of 20 non-neurologically impaired individuals served as controls. Perceptual analysis, investigating 30 different dimensions of speech, was conducted on a speech sample obtained from each participant. In addition, the Assessment of Intelligibility of Dysarthria Speech was administered. All FRDA participants presented with dysarthria with severities ranging from mild to moderate. Cluster analysis revealed 3 subgroups, the first presenting with mild dysarthric symptoms, the second with increased velopharyngeal involvement and the third characterized by increased laryngeal dysfunction. Dysarthria severity showed a significant correlation to disease duration but to no other clinical measure. The findings support the notion of subgroups in FRDA dysarthria, representing distinct impairments of the speech mechanism and perhaps reflective of differing evolutions beyond the cerebellum. © 2010 S. Karger AG, Basel.
Keyword Friedreich's ataxia
Perceptual analysis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Health and Rehabilitation Sciences Publications
School of Medicine Publications
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Created: Sun, 22 Aug 2010, 00:08:43 EST