The Effects of Posterior Focus on Deaf Children's Voice
10.3969/j.issn.1006-7299.2017.03.003
- VernacularTitle:后位聚焦口腔共鸣障碍对听障儿童嗓音的影响
- Author:
Huiping ZHENG
;
Yongtao XIAO
- Keywords:
Post focus;
Hearing-impaired children;
Voice disorder
- From:
Journal of Audiology and Speech Pathology
2017;25(3):231-233
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of posterior focus on the voice quality of hearing-impaired children.Methods A total of 15 cases of 3~6 years old hearing-impaired children with posterior focus and 20 cases of 3~6 years old without oral resonance disorders were included in this study.Fundamental frequency (F0), frequency standard deviation (F0SD), fundamental frequency perturbation (jitter), amplitude perturbation (shimmer) and normalized noise energy (NNE) on each group of children of /(ae)/ were extracted and analyzed by Dr.Voice.Results Hearing-impaired children with posterior focus problems mainly showed the voice disorder of the hyperthyroidism type.The abnormal rate of shimmer values was the highest of hearing-impaired children with posterior focus, followed by F0, jitter and F0SD,and the minimum was NNE.The average value of the voice parameters was greater than hearing-impaired children without oral resonance disorders.The jitter and shimmer of children with posterior focus showed significant differences (P<0.05) compared to the hearing-impaired children without oral resonance disorders.Conclusion Children with posterior focus have a high rate of voice disorders and mainly change the voice jitter and shimmer.
