耳植入物中的三相刺激:对内耳形或没有内耳形的用户的编程水平,语音可理解性和光谱-时间分辨率进行比较评估
Rişvan Deniz1, Eyyup Kara2, Burcu Deniz3
1Department of Audiology, Koç University Hospital, İstanbul, Türkiye.
Ear and hearing
|September 29, 2025
概括
三相脉冲刺激显著改善了内耳形 (IEMs) 的耳植入物 (CI) 用户的语音理解. 这种先进的刺激技术可以提高IEM患者的声音舒适度和沟通能力,而不会对正常内耳解剖 (NIE) 患者产生负面影响.
科学领域:
- 听力学 听力学是指听力学.
- 生物医学工程 生物医学工程
- 神经科学是一个神经科学.
背景情况:
- 内耳形 (IEMs) 可以限制耳植入物 (CI) 用户的电动范围,导致非听觉或面部神经感觉.
- 三相脉冲通过重新分配电荷提供了一个潜在的解决方案,旨在增加舒适的电流水平而没有不良影响.
研究的目的:
- 调查三相刺激是否能改善IEM的CI用户的语音感知和光谱时间处理.
- 为了比较三相刺激对IC使用者与IEM的效果,与正常内耳解剖 (NIE) 的人相比.
主要方法:
- 在40名IC使用者 (20IEM,20NIE) 中,进行了对象内平衡研究,比较了双相和三相刺激.
- 结果措施包括辅助值,CI映射参数,语音感知测试 (TURMatrix,SRT,SDS) 和处理测试 (SMRT,RGDT).
- 线性混合效应模型用于统计分析.
主要成果:
- 三相刺激扩大了动态范围,并在两组中增加了舒适的声音水平.
- 在IEM组中观察到语音感知 (TURMatrix,SRT,SDS) 和时间处理 (RGDT) 的显著改善.
- 而NIE组在语音感知 (TURMatrix,SDS) 和高值 (SRT) 方面表现出轻微的劣势.
结论:
- 三相刺激大大提高了语音可理解性和声音强度舒适性,用于CI用户与IEMs.
- 这种刺激策略对正常内耳解剖的用户没有任何感知益处,并且对正常内耳解剖的用户造成了轻微的损害.
- 使用三相脉冲编程CI对于形病例来说是一个有前途的策略,以改善通信.
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相关概念视频
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The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
Sound Intensity Level
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The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...
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Echo
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
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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...
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Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...
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