听障儿童单字调的声学分析及其治疗策略的研究

发布时间：2018-10-16 13:11

【摘要】： 声调发音异常是听障儿童普遍存在的言语障碍的表现之一。汉语是声调语言,声调与元音、辅音一样具有辨义功能。因此,对听障儿童声调异常的矫治非常重要。而现有的研究多以听障儿童的声调感知为主,对听障儿童声调发音的研究很少,并且在临床上缺乏系统的治疗策略。因此,本研究旨在通过声学分析的方法,探讨听障儿童单音节词声调,即单字调发音的主要错误类型及其声学特征,建立声学参数参考范围,进而提出系统的声调异常治疗框架和治疗策略。首先,本研究通过声学分析的方法研究了60名3-6岁正常儿童四种单字调的基频曲线和声学参数参考范围,了解正常儿童声调发音的声学特征以及发育规律,为听障儿童单字调的研究奠定基础。其次,本研究通过主观听感知和声学分析相结合的方法研究了30名3-6岁听障儿童的声调发音情况,总结听障儿童声调异常的主要错误类型为：一声错误类型：轻微降调；二声错误类型1：平调,二声错误类型2：轻微降调；三声错误类型1：平调,三声错误类型2：轻微降调；四声错误类型1：平调,四声错误类型2：降调幅度不够。此外还有一种总体错误类型：声调单一。在此基础上分析了各种错误类型的声学特征和声学参数值。第三,本研究比较了正常儿童与听障儿童特定错误类型的声学参数,获得区别正常声调和特定错误类型声调的特征参数,并总结错误成因是特定点的基频值没有下降。第四,在对听障儿童单字调发音特点研究的基础上,本研究提出了声调异常的治疗框架,包括基础性训练和针对性训练。在治疗框架的指导下,进一步提出了系统的治疗策略,以期对临床治疗提供指导和借鉴。
[Abstract]:Dystone is one of the common speech disorders in children with hearing impairment. Chinese is the tonality language, tone and vowel, consonant have the function of differentiating meanings as well. Therefore, the correction of dystone in children with hearing impairment is very important. However, most of the existing studies focus on the tone perception of children with hearing impairment, and there are few studies on tone pronunciation of children with hearing impairment, and there is a lack of systematic treatment strategies in clinical practice. Therefore, the purpose of this study is to explore the tone of monosyllabic words in children with hearing impairment by means of acoustic analysis, that is, the main error types and acoustic characteristics of monosyllabic pronunciation, and to establish the reference range of acoustic parameters. Furthermore, the systematic framework and strategy of tone abnormality therapy are put forward. Firstly, we studied the fundamental frequency curve and the reference range of acoustic parameters in 60 normal children aged 3-6 years by acoustic analysis to understand the acoustic characteristics and developmental rules of tone pronunciation in normal children. To lay a foundation for the study of single tone in children with hearing impairment. Secondly, by combining subjective auditory perception with acoustic analysis, this study studied the tone pronunciation of 30 children with hearing impairment aged 3-6 years, and concluded that the main types of tone abnormalities in children with hearing impairment were as follows: one tone error type: mild tone lowering; Two tone error type 1: flat tone, 2 tone error type 2: slightly down tone; 3 tone error type 1: flat tone, 3 tone error type 2: slight drop tone; 4 tone error type 1: flat tone, 4 tone error type 2: low tone amplitude is not enough. There is also a general error type: single tone. On this basis, the acoustic characteristics and acoustic parameters of various error types are analyzed. Thirdly, we compare the acoustic parameters between normal children and children with hearing impairment, and obtain the characteristic parameters to distinguish the normal tone from the specific error type, and conclude that the cause of the error is that the fundamental frequency of the specific point has not decreased. Fourthly, on the basis of the study on the characteristics of tone pronunciation in children with hearing impairment, a therapeutic framework of tone abnormality is proposed, including basic training and targeted training. Under the guidance of the treatment framework, a systematic treatment strategy is put forward to provide guidance and reference for clinical treatment.
【学位授予单位】：华东师范大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：R764

【引证文献】