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Area of Science:

  • Speech and Hearing Sciences
  • Voice Disorders
  • Stuttering Research

Background:

  • Persons who stutter (PWS) often have co-occurring conditions.
  • Understanding the full health burden is crucial, as per the WHO ICF framework.
  • Vocal characteristics of PWS are under-researched, necessitating further investigation.

Purpose of the Study:

  • To characterize the vocal quality of persons who stutter (PWS).
  • To explore the relationship between stuttering severity and vocal parameters.

Main Methods:

  • Comprehensive voice assessment including acoustic and perceptual data.
  • Stuttering severity was measured using the Stuttering Severity Instrument (SSI).
  • Twenty participants were included in the study.

Main Results:

  • 90% of participants presented with dysphonia (DSI score < 1.6).
  • Vocal quality included asthenia (35%) and strained voice (65%).
  • Moderate positive correlations were found between SSI and DSI (r=0.41), and breathiness (r=0.40).

Conclusions:

  • The majority of persons who stutter exhibit dysphonia.
  • Findings highlight the need for increased awareness and targeted intervention strategies for voice disorders in PWS.
  • Results provide a foundation for future research into voice and stuttering comorbidities.