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Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
Maximum phonation time in pre-school children.
Carla Aparecida Cielo1, Viviane Michele Cappellari
1Otorhino-Phonoaudiology Department, Universidade Federal de Santa Maria/RS.
Brazilian Journal of Otorhinolaryngology
|October 15, 2008
Summary
Maximum phonation time (MPT) in children aged 4-6 years showed significant increases with age. MPT values were higher than in other Brazilian studies, indicating neuromuscular maturation.
Area of Science:
- Pediatric Speech and Voice Science
- Child Development and Communication
Background:
- Maximum phonation time (MPT) studies in children yield varied results, potentially reflecting phonation control.
- MPT can serve as a qualitative and quantitative indicator in voice evaluations.
Purpose of the Study:
- To assess MPT and voice acoustic characteristics in 23 children aged 4 to 6 years and 8 months.
- To investigate the relationship between age and MPT in young children.
Main Methods:
- A prospective, cross-sectional study design was employed.
- Data collection involved parental questionnaires, auditory screening, and the R.A.S.A.T. scale for voice assessment.
- MPT was a primary data collection metric.
Main Results:
- The average MPT was 7.42s, 6.35s, and 7.19s across age groups.
- A significant positive correlation was observed between increasing age and MPT.
- The s/z ratio remained close to one for all participants.
Conclusions:
- Study findings align with existing medical literature on MPT.
- Observed MPT values were higher than those reported in previous Brazilian research.
- Children in the studied age range exhibit ongoing neuromuscular maturation, with less structural and neuromuscular control apparent at age four.
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