人工耳蜗植入儿童环境语音处理的电生理检查。
Electrophysiological Examination of Ambient Speech Processing in Children With Cochlear Implants.
机构信息
Department of Linguistics, University of California, Davis.
Department of Psychology, University of California, Davis.
出版信息
J Speech Lang Hear Res. 2022 Sep 12;65(9):3502-3517. doi: 10.1044/2022_JSLHR-22-00004. Epub 2022 Aug 29.
PURPOSE
This research examined the expression of cortical auditory evoked potentials in a cohort of children who received cochlear implants (CIs) for treatment of congenital deafness ( = 28) and typically hearing controls ( = 28).
METHOD
We make use of a novel electroencephalography paradigm that permits the assessment of auditory responses to ambiently presented speech and evaluates the contributions of concurrent visual stimulation on this activity.
RESULTS
Our findings show group differences in the expression of auditory sensory and perceptual event-related potential components occurring in 80- to 200-ms and 200- to 300-ms time windows, with reductions in amplitude and a greater latency difference for CI-using children. Relative to typically hearing children, current source density analysis showed muted responses to concurrent visual stimulation in CI-using children, suggesting less cortical specialization and/or reduced responsiveness to auditory information that limits the detection of the interaction between sensory systems.
CONCLUSION
These findings indicate that even in the face of early interventions, CI-using children may exhibit disruptions in the development of auditory and multisensory processing.
目的
本研究检查了接受人工耳蜗植入（CI）治疗先天性耳聋的儿童队列（= 28）和听力正常的对照组（= 28）的皮质听觉诱发电位的表达。
方法
我们利用一种新的脑电图范式，该范式允许评估对环境呈现的语音的听觉反应，并评估同时进行的视觉刺激对该活动的贡献。
结果
我们的研究结果表明，在 80 到 200 毫秒和 200 到 300 毫秒的时间窗口中，听觉感觉和知觉事件相关电位成分的表达存在组间差异，CI 使用者的振幅降低，潜伏期差异更大。与听力正常的儿童相比，电流源密度分析显示 CI 使用者对同时进行的视觉刺激的反应减弱，表明皮质专业化程度降低和/或对听觉信息的反应性降低，这限制了对感觉系统之间相互作用的检测。
结论
这些发现表明，即使在早期干预的情况下，CI 使用者也可能表现出听觉和多感觉处理发育的中断。
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