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Published on: May 6, 2014
HONC measures in 4- to 6-year-old children. Horii Oral Nasal Coupling Index
Z Mra1, J E Sussman, J Fenwick
1Department of Otolaryngology-Head and Neck Surgery, State University of New York at Buffalo, 14260, USA.
Insights
Horii's Oral Nasal Coupling Index (HONC) provides valid and reliable nasal resonance measures in children and adults. This study collected normative HONC data in young children, confirming its utility for evaluating speech disorders.
Area of Science:
- Speech-Language Pathology
- Acoustic Analysis
- Pediatric Audiology
Background:
- Assessing nasal resonance is crucial for diagnosing speech disorders, particularly in children with cleft palate.
- Normative data for acoustic measures like Horii's Oral Nasal Coupling Index (HONC) in young children are limited.
- Understanding age-related differences in HONC is essential for accurate clinical interpretation.
Purpose of the Study:
- To establish normative Horii's Oral Nasal Coupling Index (HONC) data for 4- to 6-year-old children without cleft palate.
- To validate the use of HONC in evaluating young children with cleft palate.
- To compare HONC values between children and adults to confirm its age-invariant normalization of nasal accelerometric signals.
Main Methods:
- Accelerometric and acoustic signals were measured from nasal and non-nasal utterances produced by children.
- Sustained "m" productions were used to calibrate correction factors for nasal and oral signals.
- Ten boys and 10 girls aged 4-6 years with normal speech, language, and hearing participated.
Main Results:
- A 13 dB difference in HONC distinguished nasal from non-nasal sentences.
- No significant gender-based differences were observed in HONC scores for sentences or "m" productions.
- Calibration correction factors did not differ between genders.
Conclusions:
- Horii's Oral Nasal Coupling Index (HONC) effectively differentiates between nasal and non-nasal utterances in children and adults.
- HONC measurements are valid and reliable for detecting disorders of nasal resonance across age groups.
- The study provides essential normative data for using HONC in pediatric speech evaluations.
Objective:
To collect normative data using Horii's Oral Nasal Coupling Index (HONC) from 4- to 6-year-old children without cleft palate to be used in the evaluation of young children with cleft palate. In addition, to determine whether HONC values in children are similar to those of adults and thus show that the HONC ratio successfully normalizes nasal accelerometric signals across age, gender, and vocal intensity.
Design:
Measurement of accelerometric and acoustic signals from novel nasal and nonnasal utterances, which the children repeated after the experimenter. Measurements also included four sustained [m] productions, which were used to calibrate correction factors used to equate nasal and oral signals during a sustained [m] production.
Setting:
Laboratory at a state university.
Participants:
Ten girls and 10 boys, aged 4 to 6 years, with normal speech, language, and hearing.
Results:
Differences of 13 dB (HONC) were found to separate nasal from nonnasal sentences. No significant difference in HONC score was found across gender for nasal/nonnasal sentences and [m] productions. The correction factors generated during [m] calibration procedures did not differ between girls and boys.
Conclusions:
Horii Oral Nasal Coupling Index differences between nasal and nonnasal utterances appear to be valid and reliable measures in both children and adults for detection of disorders of nasal resonance.
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