K. Strelnikov , C. Karoui , P. Payoux , A.S. Salabert , C. James , O. Deguine , P. Barone , M. Marx
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引用次数: 0
Abstract
Brain plasticity refers to the brain's ability to reorganize its structure or function in response to experiences, learning, and environmental influences. This phenomenon is particularly significant in individuals with deafness, as the brain adapts to compensate for the lack of auditory stimulation. The aim of this study is to investigate whether cochlear implantation can restore a normal pattern of brain activation following auditory stimulation in cases of asymmetric hearing loss. We used a PET-scan technique to assess brain activity after cochlear implantation, specifically during an auditory voice/non-voice discrimination task. The results indicated a nearly normal pattern of brain activity during the auditory discrimination task, except for increased activation in areas related to attentional processes compared to controls. Additionally, brain activity at rest showed significant changes in implanted participants, including cross modal visuo-auditory processing. Therefore, cochlear implants can restore the brain's activation pattern through long-term adaptive adjustments in intrinsic brain activity.
大脑可塑性是指大脑根据经验、学习和环境影响重组其结构或功能的能力。这种现象对耳聋患者尤为重要,因为大脑会进行调整以补偿听觉刺激的缺失。本研究旨在探讨人工耳蜗植入是否能使非对称听力损失患者的大脑在受到听觉刺激后恢复正常的激活模式。我们使用 PET 扫描技术评估人工耳蜗植入后的大脑活动,特别是在听觉声音/非声音辨别任务中的大脑活动。结果表明,与对照组相比,听觉辨别任务中的大脑活动几乎正常,只是与注意力过程相关的区域的激活增加了。此外,植入者在休息时的大脑活动也发生了显著变化,包括跨模态视听处理。因此,人工耳蜗可以通过对大脑固有活动的长期适应性调整来恢复大脑的激活模式。
期刊介绍:
The aim of the journal is to provide a forum for papers concerned with basic peripheral and central auditory mechanisms. Emphasis is on experimental and clinical studies, but theoretical and methodological papers will also be considered. The journal publishes original research papers, review and mini- review articles, rapid communications, method/protocol and perspective articles.
Papers submitted should deal with auditory anatomy, physiology, psychophysics, imaging, modeling and behavioural studies in animals and humans, as well as hearing aids and cochlear implants. Papers dealing with the vestibular system are also considered for publication. Papers on comparative aspects of hearing and on effects of drugs and environmental contaminants on hearing function will also be considered. Clinical papers will be accepted when they contribute to the understanding of normal and pathological hearing functions.