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Titolo:
Periodic variation in inspiratory volume characterizes speech as well as quiet breathing
Autore:
Denny, M;
Indirizzi:
Boston Univ, Dept Commun Disorders, Boston, MA 02215 USA Boston Univ Boston MA USA 02215 pt Commun Disorders, Boston, MA 02215 USA
Titolo Testata:
JOURNAL OF VOICE
fascicolo: 1, volume: 14, anno: 2000,
pagine: 34 - 46
SICI:
0892-1997(200003)14:1<34:PVIIVC>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
RESTING MAN; VARIABILITY; OSCILLATIONS; HUMANS; TASKS;
Keywords:
control of breathing; speech motor control; pattern of breathing; speech; voice;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Denny, M Boston Univ, Dept Commun Disorders, 635 Commonwealth Ave, Boston,MA 02215USA Boston Univ 635 Commonwealth Ave Boston MA USA 02215 MA 02215USA
Citazione:
M. Denny, "Periodic variation in inspiratory volume characterizes speech as well as quiet breathing", J VOICE, 14(1), 2000, pp. 34-46

Abstract

Variability in inspired lung volume prior to speech is only partially accounted for by speech-related concerns such as the length and loudness of theplanned utterance. Control mechanisms known to influence volume variability in nonspeech breathing could potentially account for some of this variability, but only if they operate during speech as well. This investigation was designed to test for the presence of several such mechanisms: during reading aloud. Lung volumes were recorded from 5 normal females as they read silently, then aloud. Inspired volumes were correlated with the volumes of the previous and following expirations and with inspiratory duration. Coefficients of variation were calculated for inspiratory volume, duration, and mean flow. Time-series analyses were used to compare periodicity in inspired volume for quiet and speech breathing. Control mechanisms operating during both quiet breathing and reading aloud included slow oscillations in inspired volume and minimized variability in mean flow. Inspired volume prior to speech was weakly but significantly correlated with preceding and followingexpired volume. It is concluded that some control strategies typical of quiet breathing contribute to volume variability in speech breathing.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 21:56:21