耳植入体接受者的纵向语音结果与使用心理物理和功能脑成像识别的神经因素有关
Tommy Peng1,2,3, Katherine R Henshall2,4,3, Jamal Esmaelpoor1,2
1The Bionics Institute, Melbourne, Australia.
Ear and hearing
|January 22, 2026
概括
耳植入器接收者 耳植入器接收者
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 (CI) 接受者的语音感知能力存在显著的变化.
- 传统的病史因素不足以解释这些性能差异.
- 了解处理限制对于改善CI结果至关重要.
研究的目的:
- 调查心理物理和功能性脑成像测量听觉处理限制和CI用户的长期语音理解之间的关联.
- 确定影响耳植入物个体语音感知的特定局限性.
主要方法:
- 43名IC接受者 (44只耳朵) 参与了一项纵向研究.
- 通过心理物理值评估外围神经健康.
- 评估了更高阶的歧视 ("光谱倾斜") 和皮质听觉处理 (功能近红外光谱学).
- 在植入后的一年,在多个说话者语噪音中测量语音理解.
主要成果:
- 提高对跨电极刺激强度进行区分的能力与更好的语音理解相关 (R2 = 0.138,p = 0.047).
- 减少交叉模式听觉皮层激活与语音理解结果的改善有关 (R2 = 0.216,p = 0.01).
- 综合回归模型显著预测了语音理解 (Adj R2 = 0.312,p = 0.009).
结论:
- 心理和功能性脑成像指标显著解释了CI语音理解中的个体差异.
- 使用这些措施,可以识别特定受益人的限制.
- 这些发现支持开发个性化策略来增强CI语音感知.
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