后位聚焦口腔共鸣障碍对听障儿童嗓音的影响

The Effects of Posterior Focus on Deaf Children's Voice

目的探讨后位聚焦口腔共鸣障碍对听障儿童嗓音的影响。方法选取15例3~6岁存在后位聚焦口腔共鸣障碍的听障儿童(共鸣障碍组),20例3~6岁无口腔共鸣障碍的听障儿童(对照组),使用嗓音疾病评估仪分别对两组对象发//音时的嗓音进行声学分析,比较两组的基频(F0)、基频标准差(F0SD)、基频微扰(jitter)、振幅微扰(shimmer)和标准化噪声能量(NNE)。结果对照组F0、F0SD、jitter、shimmer、NNE值分别为323.52±45.73Hz、5.35±3.38 Hz、0.27%±0.16%、2.53%±0.84%、-16.03±3.16dB;共鸣障碍组分别为328.44±89.41Hz、8.59±7.42Hz、0.74%±0.79%、4.48%±1.44%、-14.92±7.27dB,其中jitter、shimmer值显著大于对照组(P<0.05);共鸣障碍组儿童主要表现为功能亢进型嗓音障碍,shimmer值异常率最大(86.67%,13/15),其次是F0(66.67%,10/15)、jitter(53.33%,8/15)和F0SD的异常率(53.33%,8/15),异常率最小的是NNE(20%,3/15)。结论后位聚焦口腔共鸣障碍听障儿童的嗓音异常率较高,主要以jitter、shimmer值升高为主,主要表现为功能亢进型嗓音障碍。

Objective To investigate the effects of posterior focus on the voice quality of hearing-impaired children.Methods A total of 15 cases of 3～6years old hearing-impaired children with posterior focus and 20 cases of 3～6years 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//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 F0 SD,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.