| Summary: | 碩士 === 臺北市立大學 === 語言治療碩士學位學程 === 103 === Objectives: The goal of this study is to investigate the influence of age at cochlear implantation (CI) and the duration of CI experience on the open-set speech recognition of monosyllabic words, spondee words and sentences.
Method: Thirty children with CI participated in the study, 13 boys and 17 girls, aged 6.5-11.1(mean 8.7) years old. The age of implantation ranges from 1.6 to 9.2 years of age (mean 3.5); and duration of using CI ranges from 0.6 to 8.7 years (mean 5.2). Acoustic stimulation include monosyllabic words, spondee words and sentences. Questionnaires, filled out by parents, were used to collect the background information about the listeners.
Result: (1) Children with CI implanted under the age of five had better performance over those implanted over five. (2) Those who had worn CI for more than five years obtained higher performance, compared to those who used CI less than five years. (3) For children who wear CI more than three years, those who were implanted before the age of five outperformed those implanted after five in monosyllabic word, spondee word and sentence repetition. Their performances were also significant better than those implanted after five in CAPR.
Conclusion: Though not significant, children who were implanted earlier and with longer CI experience had superior speech recognition than those implanted later and with shorter CI experience. The age of implantation and duration of using CI are suggested to be the determinant factors of speech recognition among children with cochlear implant under the age of twelve.
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