耳植入物诱导了与耳严重程度相关的皮质网络的变化
Mehrnaz Shoushtarian1,2, Jamal Esmaelpoor1,2, Michelle M G Bravo1
1The Bionics Institute, East Melbourne, Victoria, Australia.
Journal of neural engineering
|August 23, 2024
概括
耳植入物改变大脑网络,减少耳的噪音和烦. 当植入物被安装时,大脑连接的分布更大,与用户改善的耳感知有关.
科学领域:
- 神经科学是一个神经科学.
- 听力学 听力学是指听力学.
- 生物医学工程 生物医学工程
背景情况:
- 耳是没有外部刺激的声音感知,往往使人衰弱.
- 耳植入物 (CI) 使用可以调节耳,但潜在的神经机制尚不清楚.
- 了解与CI使用相关的皮质网络变化对于耳管理至关重要.
研究的目的:
- 在CI使用者中调查与耳相关的皮质网络变化.
- 关联主观的耳感知变化与客观的神经网络变化.
- 确定CI使用是否影响功能连接和耳症状.
主要方法:
- 功能近红外谱学 (fNIRS) 在14名IC使用者中记录了皮质活动.
- 皮质活动测量与耳植入物 (CI) 关闭和启动.
- 使用节点强度和多样性系数分析了功能连接网络.
主要成果:
- 降低了耳声的响度与节点强度 (头通道) 的变化相关.
- 耳声响度和烦变化与多样性系数相关 (所有频道).
- 具有CI的更分布式的大脑连接与降低了耳声的声音和烦有关.
结论:
- 使用CI会改变皮质网络组织,影响耳的感知.
- 功能连接的变化,特别是节点的强度和多样性,与耳调节有关.
- 研究结果表明,CI诱导的神经可塑性可以为耳治疗策略提供信息.
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