A Study On Phonological Of Mental Retardation Children

The prevalence of mental retardation in the world population is about 1%,according to China's two national sample survey data of the disabled,the prevalence of mental retardation is 0.43-0.96%.With the increase of the number of children with mental retardation,language rehabilitation has attracted much attention in recent years.However,at present,the academic circle mostly studies language disorders from the perspectives of medical rehabilitation and educational rehabilitation,and few systematic studies have been carried out from the perspective of linguistics.This study aims to systematically investigate the phonetic characteristics of children with intellectual disabilities,analyze the process of phonetic acquisition of children with intellectual disabilities to different degrees,and its relationship with the acquisition of other language abilities,so as to further provide models and strategies for improving the phonetic teaching of children with intellectual disabilities,and improve the efficiency and validity of language rehabilitation of children with intellectual disabilities.Research based on children's language development and linguistics,and speech therapy in special populations innovative language studies using the theory of the vocabulary will voice,self-built retarded children corpus,the integrated use of language research,individual evaluation diagnosis and case experimental research methods,such as development of mental retardation children's voice and their ability to expand the system research,this article proposed "two modules(will mentally retarded children's voice is divided into vocabulary pronunciation and vocabulary speech)" and"P+P-C+T+S structure" combination of teaching mode,in the field of mentally retarded children's language teaching is an innovation,expand the mentally retarded children speech research field at the same time,Enriched the theory of phonetics.This paper is divided into six chapters:the first chapter is the introduction of the literature review related to the language research of children with intellectual disabilities.It summarizes the main perspectives of the phonetic research of children with intellectual disabilities from domestic and foreign perspectives,analyzes the current situation and existing problems,and summarizes the main achievements of the phonetic research of children with intellectual disabilities.In the end,the purpose and significance of this paper are clarified,and the research methods adopted in this paper are introduced.The second chapter is the construction of speech corpus for children with intellectual disabilities.On the basis of tracking the subjects with the method of language survey,the natural language materials of the subjects were collected in different registers by means of recording and video recording.Moreover,the individual assessment diagnosis method was adopted to obtain the phonetic language materials of the subjects by using the prescribed meter of tone checking.Finally,the phonetic corpus is transcribed according to certain principles to form a corpus.The third chapter is the investigation of the phonetic characteristics of children with intellectual disabilities.Statistical analysis method was used to collect the acoustic analysis results,and on the basis of establishing the corresponding speech corpus for children with mental retardation,the speech features of children with mental retardation were studied and analyzed in depth.The fourth chapter is mentally retarded children's pronunciation and language ability correlation investigation,based on the third ZhangZhi impaired speech all aspects of the study on the phonetic features of the overall assessment,in combination with corpus sums up mentally retarded children's pronunciation and language ability,the relationship between the next ZhangZhi experimental phonetics teaching disabled children cases provide certain reference for the teaching.The fifth chapter is the phonetic teaching strategies and Suggestions for children with intellectual disabilities.Using the method of tracking investigation,the author investigated the phonetic condition of the subjects,based on the conclusion of the experimental analysis,combined with the phonetic features of the subjects,designed the phonetic experiment teaching experiment,and recorded the intervention process and results.According to the experimental results,a personality model suitable for the phonetic teaching of children with intellectual disabilities was constructed in order to provide practical reference for the language teaching of children with intellectual disabilities.The sixth chapter is the conclusion of the thesis,which summarizes the innovation points of the research in the survey scope and object,research content and research method,and puts forward the deficiencies and problems to be further studied.