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电声刺激对封闭式文字识别系统的影响

Chhayakanta Patro¹, Ellen Shephard¹, Nirmal Kumar Srinivasan¹

¹Department of Speech Language Pathology & Audiology, Towson University, Towson, MD, USA.

Cochlear implants international

|March 11, 2025

概括

在处理语音的同时添加声学刺激显著改善了口语识别. 对耳植入物使用者来说,双方式刺激提供了比电声刺激 (EAS) 更好的词汇处理时间.

科学领域:

听觉神经科学听觉神经科学
语音处理语音处理
听力技术听力技术

背景情况:

耳植入物 (CI) 在光谱分辨率上有局限性,影响口语文字处理.
声学刺激可能会提高CI用户的语音理解.

研究的目的:

调查未经处理的语音演示 (ipsilateral或 contralateral) 与语音编码器处理的语音对口语文字处理效率的影响.
为了比较电声刺激 (EAS) 和双模刺激条件.

主要方法:

门式文字识别任务在四个条件下进行:全频谱语音,语音编码器处理的语音,EAS和双模刺激.
EAS涉及低频未处理和高频处理语音的双侧呈现.
双方向刺激涉及对侧呈现全频谱和处理语音.

主要成果:

全频谱语音需要最短的单词时间来识别,而语音编码器处理的语音需要最长的时间.
未处理和处理的语音的ipsilateral和contralateral组合显著改善了封闭的单词识别.
表演顺序是:全频谱语音 > 双模体刺激 > EAS > 语音编码器处理的语音.

结论:

在CI中,有限的光谱分辨率会损害语音处理.
声学刺激,特别是双模,增强了封闭的词识别和词汇处理时间.
与EAS相比,双通道刺激显示出优越的词汇处理时间.

关键词:

两种方式的刺激.耳植入物可以使用耳植入物.电声刺激是一种电声刺激.频谱降解的降解和Gated文字识别系统.

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