视听异步对正常听力成人和耳植入物使用者的语音可理解性的影响
Cailey A Salagovic1, Ryan A Stevenson2,3, Blake E Butler2,3,4
1Graduate Program in Psychology, University of Western Ontario, London, Canada.
Journal of speech, language, and hearing research : JSLHR
|December 4, 2025
概括
耳植入物 (CI) 用户更多地依赖视觉语音线索,而不是听到的个体,特别是当听觉信息退化时. 然而,与听力控制不同的是,CI用户的表现下降更大,视听异步增加,与听力控制不同.
科学领域:
- 听觉神经科学 听觉神经科学
- 听力学 听力学是指听力学.
- 语音感知 语音感知
背景情况:
- 语音感知依赖于整合听觉和视觉线索.
- 耳植入物 (CI) 用户通常会对视觉语音线索的依赖性增加.
- 退化的听觉信号或时间异步可能会影响视听语音感知.
研究的目的:
- 调查视听异步如何影响CI用户和典型听力个体的语音可理解性.
- 量化时间对齐对语音感知多感官集成的影响.
- 为了比较CI用户和控制器之间对视听异步的容忍度.
主要方法:
- 参与者包括15名IC使用者和31名典型听力控制器.
- 使用仅有音频,仅有视觉,同步和异步的视听句子来测试语音可理解性.
- 异步水平在100至400毫秒之间,有不同的音频和视觉领先条件.
主要成果:
- 两组人都表现出高峰的可理解性和近同步的多感官收益.
- 与对照组相比,CI使用者经历了更大的性能下降,随着异步的增加.
- 在较大的音频导致异步时,CI用户的性能恶化,而对照组显示相对改善.
结论:
- 听力正常的听众比CI用户更广泛地整合了视听语音线索.
- CI用户可能会受到极端异步的视觉语音线索的负面影响,这表明视觉偏差.
- 研究结果表明,在面临视听时间不匹配的CI用户中,语音可理解性存在独特的补偿机制.
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