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评估成人耳植入物使用者的大脑和行为在听力训练后的变化

Eun Kyung Jeon¹, Virginia Driscoll², Bruna S Mussoi³

¹Department of Communication Sciences and Disorders, University of Iowa, Iowa City, Iowa, USA.

Ear and hearing

|July 24, 2024

概括

听力训练改善了耳植入物 (CI) 用户的音调歧视,但生理测量不能预测这些收益. 需要进一步的研究来优化CI听力培训协议.

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:

耳植入物 (CIs) 可以恢复一些听力,但不能完全复制自然的听觉功能.
听力培训旨在改善CI用户的语音感知和声音处理.
了解对听觉训练的行为和生理反应之间的关系对于优化康复至关重要.

研究的目的:

评估两个不同的听觉培训计划对CI用户行为和生理听觉功能的影响.
调查后训练行为改善与客观电生理学措施之间的相关性.

主要方法:

两项实验使用了与CI用户进行的主体内设计.
我的实验涉及一个为期一个月的基于音乐的听觉训练 (实验室和家庭).
实验II侧重于一次40分钟的光谱波纹调制深度检测训练.

主要成果:

在以音乐为基础的训练 (实验I) 后,观察到行为音调歧视的显著改善.
在这两项实验中都没有发现电生理学测量 (听觉N1-P2,声学变化综合体 - ACC) 的显著变化.
在短期训练后,行为光谱波纹调制深度值略有改善 (实验II).

结论:

听力训练可以提高CI用户的光谱暗示感知.
皮层电生理反应 (ACC) 并不能可靠地预测训练效益.
进一步的研究应探索个别因素,优化CI用户的培训协议和结果措施.

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相关概念视频

Auditory Perception

Auditory Perception

The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the cochlea, a...