Functional Near-Infrared Spectroscopy Brain Imaging Investigation of Phonological Awareness and Passage Comprehension Abilities in Adult Recipients of Cochlear Implants
Functional Near-Infrared Spectroscopy Brain Imaging Investigation of Phonological Awareness and Passage Comprehension Abilities in Adult Recipients of Cochlear Implants
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DOI：
10.1044/2015_jslhr-l-14-0278
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发表时间：
2016-04-01
影响因子：
2.6
通讯作者：
Kovelman, Ioulia
中科院分区：
文献类型：
--
作者：
Bisconti, Silvia;Shulkin, Masha;Kovelman, Ioulia
目的：探讨人工耳蜗术后患者大脑对成功语言习得和加工所需的口语任务的反应。方法：在功能性近红外光谱成像过程中，听力受损患者(n=10，平均年龄：52.7±17.3岁)和听力正常对照组(n=10，平均年龄：50.6±17.2岁)完成了通常用于研究语言和文字神经发育障碍的听觉任务--语音意识和段落理解。结果：两组在实验任务上的反应时间和表现相似，尽管患有顺应性认知障碍的参与者的准确率低于对照组。总体而言，CI接受者和对照组在任务过程中表现出相似的脑激活模式。结论：CI接受者在听觉语言任务中表现出总体的神经典型激活模式，而有神经发展性语言学习障碍(如阅读障碍)的个体往往表现出非典型的脑激活。这些发现表明，脑梗塞患者在功能性近红外光谱神经成像方面的进展可能有助于揭示语言处理过程中不同类型的困难是如何影响语言大脑组织的。
Purpose: The aim of this study was to examine how the brains of individuals with cochlear implants (CIs) respond to spoken language tasks that underlie successful language acquisition and processing.Method: During functional near-infrared spectroscopy imaging, CI recipients with hearing impairment (n = 10, mean age: 52.7 +/- 17.3 years) and controls with normal hearing (n = 10, mean age: 50.6 +/- 17.2 years) completed auditory tasks-phonological awareness and passage comprehension-commonly used to investigate neurodevelopmental disorders of language and literacy.Results: The 2 groups had similar reaction time and performance on experimental tasks, although participants with CIs had lower accuracy than controls. Overall, both CI recipients and controls exhibited similar patterns of brain activation during the tasks.Conclusions: The results demonstrate that CI recipients show an overall neurotypical pattern of activation during auditory language tasks on which individuals with neurodevelopmental language learning impairments (e.g., dyslexia) tend to show atypical brain activation. These findings suggest that advancements in functional near-infrared spectroscopy neuroimaging with CI recipients may help shed new light on how varying types of difficulties in language processing affect brain organization for language.