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Laryngeal behavior during stuttering.

E G Conture, G N McCall, D W Brewer

    Journal of Speech and Hearing Research
    |December 1, 1977
    PubMed
    Summary
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    Laryngeal behavior during stuttering varies by type. Part-word repetitions showed different vocal fold actions compared to fluent speech, while sound prolongations were similar.

    Area of Science:

    • Speech-language pathology
    • Laryngology
    • Behavioral science

    Background:

    • Stuttering involves disruptions in speech fluency.
    • Understanding laryngeal behavior during stuttering is crucial for effective treatment.
    • Previous research has explored various aspects of stuttering, but laryngeal dynamics require further investigation.

    Purpose of the Study:

    • To investigate and compare laryngeal behavior during different types of stuttered speech events.
    • To differentiate laryngeal mechanisms in part-word repetitions versus sound prolongations.
    • To identify distinct laryngeal patterns associated with specific stuttering disfluencies.

    Main Methods:

    • Flexible fiberoptic naso-laryngoscopy was used to observe laryngeal behavior.
    • 101 stuttering events (part-word repetitions, sound prolongations, broken words) were analyzed from 10 participants.

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  • Laryngeal actions during stuttered speech were compared to fluent productions of the same speech segments.

    • Main Results:

    • 60% of part-word repetitions exhibited different laryngeal behavior compared to fluent speech.
    • 72% of sound prolongations demonstrated similar laryngeal behavior to fluent speech.
    • Significant variations in laryngeal behavior were observed across different stuttering types.

    Conclusions:

    • Laryngeal behavior is not uniform across all types of stuttering.
    • Part-word repetitions and sound prolongations involve distinct laryngeal mechanisms.
    • These findings suggest tailored therapeutic approaches based on specific stuttering behaviors.