电阻相变化与关节方式相关的电阻相变化
1Department of Electronic Engineering, Dong Seoul University, Seongnam, 13117, Republic of Korea. stwoo@du.ac.kr.
Scientific reports
|November 5, 2025
概括
电阻相角变化与健康成年人的舌接触强度相关. 这一发现表明阻抗相角可以客观地测量发音,并帮助诊断语音障碍.
科学领域:
- 语音科学 语言科学
- 生物医学工程 生物医学工程
- 生理学 生理学 生理学
背景情况:
- 了解舌接触对于言语表达至关重要.
- 以前的研究往往侧重于病态语言,限制了对正常发音机制的洞察力.
- 语言分析和康复需要对舌接触强度的客观测量.
研究的目的:
- 为了调查舌接触强度的变化,由不同的发音方式引起,如何影响电阻相角.
- 探索健康参与者的电阻相角度,舌头压力和表面电肌图 (sEMG) 之间的关系.
- 为了确定电阻相角是否可以作为关节强度的客观标记.
主要方法:
- 同时记录电阻,舌头压力和sEMG在六名健康成年人的辅音发音任务中.
- 使用定制的柔性 palatal 传感器来测量阻抗特性.
- 进行声学分析,包括F2斜率和舌接触时间,以与生理测量相关联.
主要成果:
- 增加的舌头接触强度 (TCS) 与更高的电阻相角度,更大的舌头压力和更强的sEMG信号正相关.
- 声学分析显示,较强的舌头接触与更的F2斜坡和更短的接触时间有关.
- 电阻相角与关节强度的客观测量有显著的关系.
结论:
- 电阻相角显示了作为一个客观的,非侵入性的标志物,用于量化语言 - 口腔接触强度在演讲期间的潜力.
- 这些发现为开发用于语言障碍的新诊断和治疗工具提供了基础.
- 需要使用更大的样本大小进行进一步的研究,以验证这些发现并探索临床应用.
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