在CI使用者中,SNR,外周听觉敏感度和中央认知特征对瞳孔反应和语音表现之间的心理关系的影响
Yue Zhang1, M Amparo Callejón-Leblic2,3,4, Ana M Picazo-Reina3
1Department of Research and Technology, Oticon Medical, Vallauris, France.
Frontiers in neuroscience
|January 8, 2024
概括
耳植入物 (CI) 用户的倾听力并不遵循一个简单的反转U形. 个别因素对瞳孔测量如何反映听力努力有重大影响,需要个性化的方法来准确测量.
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.
- 人类因素工程 人类因素工程
背景情况:
- 耳植入物 (CI) 用户经历了高听力,特别是噪音,尽管技术进步.
- 瞳孔测量,测量峰值瞳孔膨胀 (PPD),是一个强大的生理指标听力努力.
- 之前的研究表明,在正常听力和听力受损的听众中,语音表现和听力努力之间存在反转的U关系,但这在CI用户中未得到证实.
研究的目的:
- 为了研究语音噪音任务困难和CI用户的瞳孔反应之间的心理关系.
- 为了确定听觉敏感度和认知能力的个体差异是否会影响这种关系.
- 评估瞳孔测量作为衡量CI用户在不同噪音水平的倾听力度的有效性.
主要方法:
- 17名 postilingually聋的成年人进行了语音噪声任务,在一系列的信号与噪声比率 (SNRs).
- 同时记录了瞳孔反应 (PPD) 和主观努力评分.
- 听觉敏感性 (在安静/噪音中识别单词),认知能力 (光谱-时间调制,非语言智力) 和生活质量 (QoL) 被评估.
主要成果:
- 没有观察到SNR和PPD之间的集团级反转U关系.
- 个体差异显著调节了PPD-SNR关系;更好的语音识别与PPD的二次性下降相关.
- 较高的非语言智力和较低的QoL与较低的平均PPD相关,这表明听力努力减少.
结论:
- 在CI使用者中,瞳孔测量和倾听力度之间的关系高度个性化,而不是简单的反转U.
- 单个因素,如语音识别,认知能力,和QoL显著影响学生的反应.
- 未来的研究应该专注于个性化的方法,以可靠地量化使用学生计在CI用户的倾听力度,考虑诸如动机和参与等因素.
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