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2010
- handle: 10670/1.b2p5c3
- hal: hal-01616003
- doi: 10.1159/000314264
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info:eu-repo/semantics/altIdentifier/doi/10.1159/000314264
info:eu-repo/semantics/OpenAccess
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Posture Phonation Vocal effort Voice Voix Parole Phonétique Clinique Evaluation instrumentale -bio]/Human health and pathologyCiter ce document
Aude Lagier et al., « Coordination between Posture and Phonation in Vocal Effort Behavior », HALSHS : archive ouverte en Sciences de l’Homme et de la Société, ID : 10.1159/000314264
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Introduction: Postural aspects of vocal effort are unusually described in the literature whereas they are extensively managed in speech therapy. Objectives: This study aims to determine whether body movement is a side-effect of vocal effort or an integrant part of global communication effort behaviour. The answer to this question is mainly based on the correlations between the movement and the phonation.Design: This experimental study involved healthy subjects. They had to communicate to a listener during exposure to three situations where the environmental obstacles were increasing.Results: Vocal parameters such as sound pressure level, fundamental frequency, closed quotient and words duration all increased with increasing difficulty of communication (ie. increasing vocal effort). All body segments movement increased their amplitude and duration with increasing vocal effort. Vocal and kinematic characteristics were significantly correlated.Conclusion: The close correlation of movement and vocal production during vocal effort definitely excludes that the movement is a consequence of the latter. Posture and voice are coordinated in the action of communication and each body segment seems to play a different role in the vocal effort behaviour.