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Titolo:
Variations in the relative speeds of orofacial structures with stuttering severity
Autore:
McClean, MD; Runyan, CM;
Indirizzi:
Walter Reed Army Med Ctr, Army Audiol & Speech Ctr, Washington, DC 20307 USA Walter Reed Army Med Ctr Washington DC USA 20307 Washington, DC 20307 USA James Madison Univ, Harrisonburg, VA 22807 USA James Madison Univ Harrisonburg VA USA 22807 , Harrisonburg, VA 22807 USA
Titolo Testata:
JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH
fascicolo: 6, volume: 43, anno: 2000,
pagine: 1524 - 1531
SICI:
1092-4388(200012)43:6<1524:VITRSO>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
SENSITIVITY; PARAMETERS; DISCHARGE; AFFERENTS; MOVEMENTS; CHILDREN; STRETCH; LIP;
Keywords:
stuttering; orofacial speed; speech-motor control; lips; tongue; jaw; movement coordination;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: McClean, MD Walter Reed Army Med Ctr, Army Audiol & Speech Ctr, Washington, DC 20307 USA Walter Reed Army Med Ctr Washington DC USA 20307 DC 20307 USA
Citazione:
M.D. McClean e C.M. Runyan, "Variations in the relative speeds of orofacial structures with stuttering severity", J SPEECH L, 43(6), 2000, pp. 1524-1531

Abstract

Stuttering can be characterized in part as a disorder in the coordination of different muscle systems. In light of basic aspects of orofacial physiology and development, the speeds of the lips and tongue relative to the jaw mar be an important dimension For evaluating motor coordination among persons who stutter (PWS). To test this idea, an electromagnetic system was usedto obtain measures of lip, tongue, and jaw speed in 38 adults (29 PWS and 9 normally fluent speakers, NFS) as they repeated a simple speech utteranceat a normal rate. Using categorical ratings of stuttering severity, ratiosof tongue speed to jaw speed were significantly greater in PWS rated as severe, compared to NFS and other PWS. Significant increases in lower lip-to-jaw and tongue-to-jaw speed ratios with stuttering severity were also reflected in correlation analyses relating speed ratios to a continuous measure of stuttering severity These trends in speed ratio were related to increases in lower lip and tongue speed and decreases in jaw speed with stuttering severity Sources of the speed differences are discussed in relation to underlying muscle activity, motor compensation processes in adults, and the development of orofacial motor control in children who stutter.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 00:19:58