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Title

THE ROLE OF AGE IMPLANTATION ON FORMANTS FREQUENCY CHANGING IN EARLY AND LATE COCHLEAR IMPLANTED CHILDREN: A STUDY BASED ON PERCEPTUAL AND ACOUSTICAL ASSESSMENTS

Pages

  24-31

Abstract

 Background and Aim: AGE IMPLANTATION is one of the effective factors on speech production outcomes in COCHLEAR IMPLANTed (CI) children. The purpose of this study is to determine the role of AGE IMPLANTATION on formant frequencies and production of three Persian VOWELs including /a/, /u/, /i/ in CI children.Methods: Sixty nine congenitally deaf children who received CI were divided into three groups based on their AGE IMPLANTATION. The first and second formant frequencies of VOWELs, as dependent variables, were measured by SFS software 1.2. The role of children’s AGE IMPLANTATION and their gender, as effective factors, were analyzed using a 3 (implantation groups) ×2 (gender) two-way ANOVA with a post hoc Bonferroni honest significant difference test in SPSS 16.0.Results: The mean values of F1/a/, F2/a/, F2/u/, F1/i/, F2/i/ were significantly different among different groups (p<0.05).100% of children who received CI before the age of 2 produced VOWELs correctly. Types of VOWEL production disorders were mostly nasalization and backing in children who received CI between the ages of 3 to 4 and after age 5. Analysis showed that the effect of AGE IMPLANTATION on formant frequencies of VOWELs was significant (p<0.05).Conclusion: Early AGE IMPLANTATION (before 2) can cause an improvement of VOWEL production due to enhancement of F1 and F2 placement which is related to height and back-to-front movements of the tongue. Also, AGE IMPLANTATION predicts the quality of VOWEL production.

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    APA: Copy

    ZAMANI, PEYMAN, MOTASADDI ZARANDY, MASOUD, BORGHEI, PEDRAM, REZAI, HOSSEIN, & MOUBEDSHAHI, FARZAD. (2016). THE ROLE OF AGE IMPLANTATION ON FORMANTS FREQUENCY CHANGING IN EARLY AND LATE COCHLEAR IMPLANTED CHILDREN: A STUDY BASED ON PERCEPTUAL AND ACOUSTICAL ASSESSMENTS. AUDITORY AND VESTIBULAR RESEARCH, 25(1), 24-31. SID. https://sid.ir/paper/676072/en

    Vancouver: Copy

    ZAMANI PEYMAN, MOTASADDI ZARANDY MASOUD, BORGHEI PEDRAM, REZAI HOSSEIN, MOUBEDSHAHI FARZAD. THE ROLE OF AGE IMPLANTATION ON FORMANTS FREQUENCY CHANGING IN EARLY AND LATE COCHLEAR IMPLANTED CHILDREN: A STUDY BASED ON PERCEPTUAL AND ACOUSTICAL ASSESSMENTS. AUDITORY AND VESTIBULAR RESEARCH[Internet]. 2016;25(1):24-31. Available from: https://sid.ir/paper/676072/en

    IEEE: Copy

    PEYMAN ZAMANI, MASOUD MOTASADDI ZARANDY, PEDRAM BORGHEI, HOSSEIN REZAI, and FARZAD MOUBEDSHAHI, “THE ROLE OF AGE IMPLANTATION ON FORMANTS FREQUENCY CHANGING IN EARLY AND LATE COCHLEAR IMPLANTED CHILDREN: A STUDY BASED ON PERCEPTUAL AND ACOUSTICAL ASSESSMENTS,” AUDITORY AND VESTIBULAR RESEARCH, vol. 25, no. 1, pp. 24–31, 2016, [Online]. Available: https://sid.ir/paper/676072/en

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