Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Hypernasality and velopharyngeal impairment

D W Warren1, R M Dalston, R Mayo

  • 1University of North Carolina Craniofacial Center, Department of Dental Ecology, School of Dentistry, Chapel Hill 27599-7455.

The Cleft Palate-Craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association
|July 1, 1994
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Honeybee colony collapse due to Nosema ceranae in professional apiaries.

Environmental microbiology reports·2013
Same author

Hormonal support of lacrimal function, primary lacrimal deficiency, autoimmunity, and peripheral tolerance in the lacrimal gland.

Ocular immunology and inflammation·2012
Same author

Obesity-dependent metabolic signatures associated with nonalcoholic fatty liver disease progression.

Journal of proteome research·2012
Same author

Systematic variations in immune response-related gene transcript abundance suggest new questions about environmental influences on lacrimal gland immunoregulation.

Current eye research·2011
Same author

Noise-free contrast improvement with a low frequency polarizing filter: a practical evaluation.

Applied optics·2010
Same author

[Malignant neuroleptic syndrome in post-appedectomy peritonitis].

Revista espanola de anestesiologia y reanimacion·2008
Same journal

Patient-Specific 3D Printed Palatal Protection Plates for Le Fort III Osteotomy in Syndromic Midface Hypoplasia: What We Do.

The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association·2026
Same journal

Development and Reliability Assessment of the Presurgical Infant Orthopedics Assessment Tool for Evaluating Clinical Outcomes of Presurgical Infant Orthopedics.

The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association·2026
Same journal

Assessment of Dentoskeletal and Airway Changes Using Hyrax and Fan-Type Expanders in Cleft Patients: An In Vivo CBCT Study.

The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association·2026
Same journal

Integrated Surgical Repair of an Isolated Congenital Palatal Fistula: Case Report and Brief Review.

The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association·2026
Same journal

Quality of Life for Children with Cleft Lip and Palate and Their Families: The Effect of Adoption from China.

The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association·2026
Same journal

Artificial Intelligence Applications in Cleft Lip and Palate Diagnosis, Prediction, and Treatment: A Systematic Review and Meta-Analysis.

The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association·2026
See all related articles

Impaired velopharyngeal (VP) function causes hypernasality. This study found VP orifice area, nasal airflow rate, and duration moderately correlate with perceived hypernasality, with adults seeming more hypernasal than children.

Area of Science:

  • Speech-language pathology
  • Acoustic analysis
  • Physiology of speech production

Background:

  • Hypernasality is primarily caused by impaired velopharyngeal (VP) function.
  • Listener perception of hypernasality is influenced by factors beyond VP function alone.
  • Understanding these factors is crucial for accurate diagnosis and treatment.

Purpose of the Study:

  • To investigate the relationship between oral-nasal resonance balance and velopharyngeal orifice area.
  • To assess the correlation between hypernasality and nasal airflow rate.
  • To examine the link between perceived resonance and the duration of nasal airflow.

Main Methods:

  • Utilized the pressure-flow technique to estimate velopharyngeal orifice area.
  • Measured nasal airflow rate and duration using the pressure-flow technique.

Related Experiment Videos

  • Collected listener ratings of oral-nasal resonance balance on a 6-point scale.

    • Main Results:

    • Moderate correlations were found between hypernasality ratings and VP orifice area (r=0.66), nasal airflow rate (r=0.61), and nasal airflow duration (r=0.53).
    • Adults were perceived as more hypernasal than children with similar degrees of VP impairment.
    • For small VP openings, the duration of opening-closing movements influenced perceived resonance.

    Conclusions:

    • VP orifice area, nasal airflow rate, and duration are significant contributors to perceived hypernasality.
    • Age appears to be a factor in how hypernasality is perceived.
    • The dynamics of velopharyngeal closure, specifically movement duration, play a role in resonance balance, particularly in cases of minimal VP opening.