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Coordination between posture and phonation in vocal effort behavior.

Aude Lagier1, Marianne Vaugoyeau, Alain Ghio

  • 1Department of Otorhinolaryngology, Hôpital de la Timone, Marseille, France. aude.lagier@laposte.net

Folia Phoniatrica Et Logopaedica : Official Organ of the International Association of Logopedics and Phoniatrics (IALP)
|May 13, 2010
PubMed
Summary

Body movement is integral to vocal effort, not just a side effect. Posture and voice are coordinated during communication, with each body part playing a role in vocal effort behavior.

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Area of Science:

  • Biomechanics
  • Speech Science
  • Communication Studies

Background:

  • Postural correlates of vocal effort are under-researched.
  • Speech therapy extensively addresses postural aspects of voice production.

Purpose of the Study:

  • To determine if body movement is a byproduct or essential component of vocal effort.
  • To investigate correlations between posture and phonation in communication.

Main Methods:

  • Twenty healthy participants communicated under three distinct vocal effort conditions.
  • Vocal and kinematic parameters were measured to assess vocal effort and body movement.

Main Results:

  • Vocal parameters confirmed increased vocal effort across conditions.
  • Kinematic parameters, including movement amplitude and duration, increased with vocal effort.
  • Significant correlations were found between vocal and kinematic characteristics.

Conclusions:

  • Posture and vocal production are closely coordinated, indicating movement is integral to vocal effort.
  • Body movement is not merely a consequence of vocal effort but an integrated aspect of communication behavior.
  • Specific body segments contribute uniquely to vocal effort behavior.