A Study on the Characteristics of Articulation Movement in Patients with Dysarthria under Different Vowel Tasks
10.3969/j.issn.1006-7299.2024.05.006
- VernacularTitle:不同韵母任务下神经性言语障碍患者的构音运动特征研究
- Author:
Jiamei CHEN
1
,
2
;
Qin WAN
;
Jiajing LIANG
;
Fenfen HUI
;
Hongfen QIAO
;
Wenzhuo SHU
Author Information
1. 华东师范大学教育学部康复科学系(上海 200062)
2. 中山大学附属第八医院(深圳福田)康复医学科
- Keywords:
Dysarthria;
Vowels;
Articulation movement
- From:
Journal of Audiology and Speech Pathology
2024;32(5):413-417
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the acoustic characteristics of monophthong vowels and compound vow-els articulation movement in patients with dysarthria.Methods A total of 24 patients aged 40～81 years old with dysarthria from hospitals,and 24 healthy adults aged 40～80 years old from communities in Shanghai were recrui-ted.The first and second formants(F1,F2)of monophthong vowels/a/,/i/,/u/were extracted from the speech samples,and mandibular distance,tongue distance,vowel space area(VSA)and vowel articulation index(VAI)were calculated.The slope of the second formant of compound vowels/ai/,/ua/,/uai/was extracted and calculat-ed.The acoustic parameters of two groups of subjects were compared under different tasks.Results Under the monophthong vowels task,F1 of/a/,F2 of/i/,mandibular distance,tongue distance,VSA and VAI in the pa-tients were significantly lower than those in the control group(P＜0.01).F2 of/u/was significantly higher than that in the control group(P＜0.01).F2 slope of/ai/,/ua/,/uai/was significantly lower than that of the control group(P＜0.05).Conclusion The space of monophthong vowels articulation movement was reduced in the pa-tients with dysarthria,presenting a state of aggregation.The speed of compound vowels articulation movement was decreased.
