Perceptual Evaluation of Speech and Velopharyngeal Function in Children with and without Cleft Palate and the Relationship to Nasal Airflow Patterns
| Autor: | Hasse Ejnell, Björn Bake, Hans Dotevall, Anette Lohmander-Agerskov |
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| Rok vydání: | 2002 |
| Předmět: |
Male
medicine.medical_specialty Velopharyngeal Insufficiency Cleft Lip media_common.quotation_subject Airflow Nose Audiology Sensitivity and Specificity Speech Disorders 03 medical and health sciences Nasal mask 0302 clinical medicine Velopharyngeal insufficiency Speech Production Measurement Communication disorder Perception otorhinolaryngologic diseases medicine Humans Articulation Disorders Child 030223 otorhinolaryngology media_common Observer Variation Voice Disorders business.industry 030206 dentistry respiratory system medicine.disease Cleft Palate medicine.anatomical_structure Otorhinolaryngology Case-Control Studies Nasal airflow Female Oral Surgery Pulmonary Ventilation business |
| Zdroj: | Karolinska Institutet |
| ISSN: | 1545-1569 1055-6656 |
| DOI: | 10.1597/1545-1569_2002_039_0409_peosav_2.0.co_2 |
| Popis: | Objectives The aim was to study the relationship between perceptual evaluation of speech variables related to velopharyngeal function and the pattern of nasal airflow during the velopharyngeal closing phase in speech in children with and without cleft palate. Participants Fourteen children with cleft lip and palate or cleft palate only and 15 controls aged 7 and 10 years. All were native Swedish speakers. Method Three experienced listeners performed a blinded perceptual speech evaluation. Nasal airflow was transduced with a pneumotachograph attached to a nasal mask. The duration from peak to 5% nasal airflow, maximum flow declination rate, and nasal airflow at selected points in time during the transition from nasal to stop consonants in bilabial and velar articulatory positions in sentences were estimated. The analysis was focused on the perceptual ratings of “velopharyngeal function” and “hypernasality.” Results A strong association was found between ratings of “velopharyngeal function” and “hypernasality” and the pattern of nasal airflow during the bilabial nasal-to-stop combination /mp/. Both the sensitivity and specificity were 1.00 for the bilabial temporal airflow measure in relation to ratings of “velopharyngeal function.” The nasal airflow rate during /p/ in /mp/ had a sensitivity of 1.00 and specificity of 0.92 to 0.96 in relation to ratings of “hypernasality.” Conclusion Assessment of the nasal airflow dynamics during the velopharyngeal closing phase in speech presents quantitative, objective data that appear to distinguish between perceptually normal and deviant velopharyngeal function with high sensitivity and specificity. |
| Databáze: | OpenAIRE |
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