Comparison of cognitive function in deaf children between before and after cochlear implant
Comparison of cognitive function in deaf children between before and after cochlear implant
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DOI：
10.1097/aud.0b013e318031541b
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发表时间：
2007-04-01
期刊：
影响因子：
3.7
通讯作者：
Oh, Seung-Ha
中科院分区：
文献类型：
--
作者：
Shin, Min-Sup;Kim, Soo-Kyung;Oh, Seung-Ha
目的：本研究旨在探讨聋儿人工耳蜗植入术后认知能力的改善情况。我们还研究了心理社会因素，预测良好的结果人工耳蜗implantation.Design：神经心理测试电池管理到17个聋哑儿童（平均年龄，7岁2个月）接受人工耳蜗植入前，他们进行了重新评估，在6个月，随访相同的测试。他们的父母完成了问卷调查，他们的医疗和教育史，父母的教养方式，和父母的情绪problems.Results：聋儿表现出显着的改善，快速和微妙的运动协调和视觉组织能力。他们的认知功能的理解，注意力和顺序处理，非语言测试测量，被发现有改善的边缘轻度精神发育迟滞的水平接近正常范围。然而，他们在信息，理解和相似性，和数学分测试要求的语言能力没有表现出显着的变化。聋儿人工耳蜗植入后工作记忆显著改善。然而，他们在随访时的视觉注意力测试中出现的遗漏错误比人工耳蜗植入前更多。植入后儿童对视觉刺激的这种不注意可以归因于这些儿童对外部噪声的分心。结论：人工耳蜗植入术后6个月，聋儿的非言语认知功能和工作记忆有明显改善。相反，他们的语言能力没有显著变化。母体因素对人工耳蜗植入预后的预测有重要意义。没有对照组排除了得出任何确定结论的可能性，因为除了成熟和训练的影响之外，植入物的影响无法被取笑。未来的研究应该通过使用适当的对照组来解决这个问题。
Objectives: This study was conducted to examine improvements of cognitive abilities after cochlear implantation in deaf children. We also examined the psychosocial factors that predict good outcomes of cochlear implantation.Design: A neuropsychological test battery was administered to 17 deaf children (mean age, 7 yr 2 mo) before receiving the cochlear implant, and they were reassessed with the same test at 6-mo, follow-up. Their parents completed questionnaires concerning their medical and educational history, parenting style, and parental emotional problems.Results: Deaf children showed marked improvement in speedy and delicate motor coordination and visual organization abilities. Their cognitive functions of comprehension, concentration, and sequential processing, as measured by nonverbal tests, were found to have improved from the levels of borderline to mild mental retardation to that of near-normal range. However, their performances on Information, Comprehension and Similarity, and Mathematics subtests requiring verbal abilities did not show significant changes. Deaf children's working memory improved significantly after cochlear implantation. However, they showed more omission errors in the visual attention test at follow-up than before cochlear implantation. Such inattentiveness for visual stimuli in children post-implantation could be attributed to distractibility of these children toward external noise. Mothers' depression was negatively correlated with scores of acquired knowledge of deaf children.Conclusion: At the 6-mo, follow-up after cochlear implant, deaf children showed marked improvement in nonverbal cognitive functions and working memory. Conversely, their verbal abilities did not significantly change. Maternal factors were found to be important for predicting the prognosis of cochlear implantation. The absence of a control group precludes the possibility of drawing any firm conclusions because the effect of the implant cannot be teased apart from the effects of maturation and training. Future studies should address this question with the use of appropriate control groups.