Relationship between Vowel Production and Speech Clarity in Post-stroke Dysarthria Patients
10.3969/j.issn.1006-9771.2020.00.023
- VernacularTitle:脑卒中构音障碍患者元音产出特征与言语清晰度的相关性
- Author:
Sheng-nan GE
1
;
Yong-li WANG
1
;
Min-min YIN
2
;
Qin WAN
1
;
Hong QIAN
3
;
Zhao-ming HUANG
1
Author Information
1. Chinese Academy of Speech and Hearing Rehabilitation Science and ICF Application, East China Normal University, Shanghai 200333, China
2. Department of Special Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
3. Department of Rehabilitation Medicine, Shanghai Fifth Rehabilitation Hospital, Shanghai 201600, China
- Publication Type:Research Article
- Keywords:
stroke;
dysarthria;
vowel production;
acoustic analysis;
speech clarity
- From:
Chinese Journal of Rehabilitation Theory and Practice
2021;27(1):43-47
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the characteristics of vowel production of dysarthria after stroke, and the relationship between vowel production and speech clarity. Methods:From October, 2019 to January, 2020, 19 patients with post-stroke dysarthria and 18 healthy controls were asked to read a short essay to extract vowels, and measured the jaw distance, tongue distance, F2i/F2u, vowel space area (VSA), vowel articulation index (VAI), F1 and F2 variability, and speech clarity. The correlation between vowel production and speech clarity were analyzed. Results:Tongue distance, F2i/F2u, VSA, VAI, and speech clarity were less in the patients than in the controls (|t| > 2.268, P < 0.05), while F2 variability was more (t = 2.375, P < 0.05). F2i/F2u (r = 0.465), VAI (r = 0.488) and F2 variability (r = -0.504) were correlated to speech clarity (P < 0.05). Conclusion:The vowel production impaired in patients with post-stroke dysarthria, featured as abnormal articulatory movements, concentration of vowels and poor stability of vowels, which impacts the speech clarity.
