Umashankar Abishek, Ramamoorthy Santhoshi, Selvaraj Jasmine Lydia, Dhandayutham Subhashini
Department of Translational and Clinical Research, Newcastle University, Newcastle Upon Tyne, UK.
Department of Speech Language Pathology, MERF Institute of Speech and Hearing, Chennai, India.
Indian J Otolaryngol Head Neck Surg. 2024 Feb;76(1):645-652. doi: 10.1007/s12070-023-04236-9. Epub 2023 Sep 26.
The aim of the study was to compare the acoustic characteristics of voice between Auditory Brainstem Implantees, Cochlear Implantees and normal hearing children. Voice parameters such as fundamental frequency, formant frequencies, perturbation measures, and harmonic to noise ratio were measured in a total of 30 children out of which 10 were Auditory Brainstem Implantees, 10 were Cochlear Implantees and 10 were normal hearing children. Parametric and nonparametric statistics were done to establish the nature of significance between the three groups. Overall deviancies were seen in the implanted group for all acoustic parameters. However abnormal deviations were seen in individuals with Auditory Brainstem Implants indicating the deficit in the feedback loop impacting the voice characteristics. The deviancy in feedback could attribute to the poor performance in ABI and CI. The CI performed comparatively better when compared to the ABI group indicating a slight feedback loop due to the type of Implant. However, there needs to be additional evidence supporting this and there is a need to carry out the same study using a larger sample size and a longitudinal design.
该研究的目的是比较听觉脑干植入者、人工耳蜗植入者和听力正常儿童的嗓音声学特征。对总共30名儿童的嗓音参数进行了测量，这些参数包括基频、共振峰频率、微扰测量以及谐波噪声比，其中10名是听觉脑干植入者，10名是人工耳蜗植入者，10名是听力正常儿童。采用参数统计和非参数统计来确定三组之间的显著性性质。在植入组中，所有声学参数均出现总体偏差。然而，在听觉脑干植入者个体中观察到异常偏差，这表明反馈回路存在缺陷，影响了嗓音特征。反馈偏差可能导致听觉脑干植入和人工耳蜗植入效果不佳。与听觉脑干植入组相比，人工耳蜗植入组表现相对较好，这表明由于植入类型的原因存在轻微的反馈回路。然而，需要更多证据支持这一点，并且有必要使用更大的样本量和纵向设计进行同样的研究。
