心理调曲线与儿童和成年人在噪音中的元音识别之间的关系 带有耳植入物的儿童和成年人
Meisam K Arjmandi1,2, Kelly N Jahn3,4, Charles B Hem5
1Department of Communication Sciences and Disorders, University of South Carolina, Columbia.
Journal of speech, language, and hearing research : JSLHR
|April 23, 2025
概括
在耳植入物 (CI) 用户中,更尖的心理物理调曲线 (PTC) 与噪音中更好的元音识别相关. 这表明,改进的电极-神经元接口 (ENI) 可以提高语音感知,无论年龄如何,有助于个性化CI编程.
科学领域:
- 听觉神经科学 听觉神经科学
- 语音感知 语音感知
- 医疗器械 医疗器械
背景情况:
- 耳植入物 (CI) 的性能取决于电极-神经元接口 (ENI).
- 劣质的ENI导致通道相互作用,降低光谱信息和语音识别,特别是在噪音中.
- 心理物理调整曲线 (PTC) 可以间接测量ENI质量和道相互作用.
研究的目的:
- 调查儿科和成人CI使用者噪音中的PTC度和母音识别之间的关系.
- 确定PTC是否可以在具有挑战性的听力条件下作为语音识别能力的预测器.
主要方法:
- 在8名患有CI的儿童和8名成年人中评估了PTC和噪音中的母音识别.
- 测量PTCs使用直接刺激在一个中间阵列电极.
- 声母识别在四个说话者的背景噪音中进行了测试.
主要成果:
- 更清晰的PTC与儿童和成人在噪音中明显更好的元音识别有关 (p = .02).
- 儿童在噪音中表现出比成年人更好的元音识别 (p = .034),尽管PTC清晰度没有显著差异.
- 这些发现表明,较少的通道相互作用与CI用户的语音感知改善有关.
结论:
- PTC 清晰度是预测 CI 听众在噪音中的元音识别的相关指标.
- 这些结果支持进一步研究使用PTC进行个性化CI编程以优化光谱暗示传输.
- 该研究强调了定制的CI策略的潜力,以提高噪音环境中的语音理解.
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