手术后舌癌患者发音清晰度正常但发音变异性升高。
Articulatory clarity and variability before and after surgery for tongue cancer
- 用元音清晰度指数和频谱分散度评估发音变化
- 术后清晰度未下降，但元音/ɪ/的变异性显著上升
- 适合语音康复与头颈癌康复研究者参考
舌癌手术可能影响舌头的运动性和肌群功能，进而影响发音清晰度和变异性。本研究通过元音清晰度指数（VAI）和元音共振峰分散度（VFD）评估发音特征。对11名患者在术前及术后6个月进行句子朗读任务测试，并与11名性别、年龄匹配的正常对照者对比。结果表明，术后VAI显著低于术前，但患者与正常人之间在任一时间点均无显著差异；术后/ɪ/的VFD值高于术前及正常对照组，提示发音变异性增加。综合来看，本研究样本中，舌癌术后患者的发音清晰度仍处于正常范围，但发音变异性显著升高。
原文摘要 · Abstract (English)
Surgical treatment for tongue cancer can negatively affect the mobility and musculature of the tongue, which can influence articulatory clarity and variability. In this study, we investigated articulatory clarity through the vowel articulation index (VAI) and variability through vowel formant dispersion (VFD). Using a sentence reading task, we assessed 11 individuals pre and six months post tongue cancer surgery, alongside 11 sex- and age matched typical speakers. Our results show that while the VAI was significantly smaller post-surgery compared to pre-surgery, there was no significant difference between patients and typical speakers at either time point. Post-surgery, speakers had higher VFD values for /i/ compared to pre-surgery and typical speakers, signalling higher variability. Taken together, our results suggest that while articulatory clarity remained within typical ranges following surgery for tongue cancer for the speakers in our study, articulatory variability increased.
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