Kinematic Analysis of Lingual Movements during Consonant Productions in Dysarthric Speakers with Friedreich's Ataxia: A Case-by-Case Analysis

Autor/inn/en	Folker, Joanne E.; Murdoch, Bruce E.; Cahill, Louise M.; Delatycki, Martin B.; Corben, Louise A.; Vogel, Adam P.
Titel	Kinematic Analysis of Lingual Movements during Consonant Productions in Dysarthric Speakers with Friedreich's Ataxia: A Case-by-Case Analysis
Quelle	In: Clinical Linguistics & Phonetics, 25 (2011) 1, S.66-79 (14 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0269-9206
DOI	10.3109/02699206.2010.511760
Schlagwörter	Adults; Articulation Impairments; Neurological Impairments; Suprasegmentals; Phonemes; Control Groups; Sentences; Syllables; Repetition; Motion; English + Suchen Sie Ihr Suchwort? Artikulationsstörung; Neurodegenerative Erkrankung; Fonem; Sentence analysis; Satzanalyse; Silbe; Wiederholung; Bewegungsablauf; English language; Englisch
Abstract	Articulatory kinematics were investigated using electromagnetic articulography (EMA) in four dysarthric speakers with Friedreich's ataxia (FRDA). Specifically, tongue-tip and tongue-back movements were recorded by the AG-200 EMA system during production of the consonants t and k as produced within a sentence utterance and during a rapid syllable repetition task. The results obtained for each of the participants with FRDA were individually compared to those obtained by a control group (n = 10). Results revealed significantly greater movement durations and increased articulatory distances, most predominantly during the approach phase of consonant production. A task difference was observed with lingual kinematics more disturbed during the syllable repetition task than during the sentence utterance. Despite expectations of slowed articulatory movements in FRDA dysarthria, the EMA data indicated that the observed prolongation of consonant phase durations was generally associated with greater articulatory distances, rather than slowed movement execution. (Contains 3 tables and 1 figure.) (As Provided).
Anmerkungen	Informa Healthcare. Telephone House, 69-77 Paul Street, London,EC2A 4LQ,UK. Tel: 800-354-1420; e-mail: healthcare.enquiries@informa.com; Web site: http://informahealthcare.com/action/showJournals
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10