耳植入物脉冲相位持续时间对根据音调排名的刺激排名的影响
Joshua S Stohl1,2, Stephen R Dennison2, Robert D Wolford1
1MED-EL Corporation, 2511 Old Cornwallis Road, Durham, North Carolina 27713, USA.
JASA express letters
|February 2, 2026
概括
变化相位持续时间 (PD) 对耳植入体用户的耳顶部的音调感知产生影响. 较长的PD降低了音调排列,这表明了一种减少顶点电极音调混的方法.
科学领域:
- 听力学 听力学是指听力学.
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
背景情况:
- 耳植入物 (CIs) 的目的是通过电刺激听觉神经来恢复听力.
- 在CI中深入插入的电极阵列可能会导致音高混,特别是在尾的顶端区域.
- 了解影响音高感知的因素对于优化CI性能至关重要.
研究的目的:
- 为了研究阶段持续时间 (PD) 对CI使用者的尾管不同区域的音调感知的影响.
- 为了确定操纵PD是否可以减轻顶部区域的音调混.
主要方法:
- 患有CI的参与者对通过顶端,中间和基底电极呈现的刺激的感知度进行了排名.
- 刺激在相位持续时间 (PD) 中变化,而电极位置保持不变.
主要成果:
- 较长的PD导致了较低的音调排名,但这种效应仅对尖端电极具有重要意义.
- PD并没有显著影响中间或基底电极的音调感知.
结论:
- 阶段持续时间是一个关键参数,影响CI用户在顶部区域的音调感知.
- 增加顶端电极的PD可能是一个可行的策略,以减少音调模两可,并改善语音理解.
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