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

A Study on the Characteristics of Articulation Movement in Patients with Dysarthria under Different Vowel Tasks

陈佳梅;万勤;梁佳静;惠芬芬;乔红粉;舒文卓

1:华东师范大学教育学部康复科学系

2:中山大学附属第八医院(深圳福田)康复医学科

摘要
目的 探讨神经性言语障碍患者单、复韵母构音运动的声学特征。方法 在上海市多家医院收集24例40~81岁的神经性言语障碍患者(患者组),在上海市社区收集24例40~80岁的健康成人(对照组),从两组跟读含有不同韵母的语音样本中,提取单韵母/a/、/i/、/u/的第一、二共振峰(F1、F2),并计算出下颌距、舌距、元音空间面积(vowel space area, VSA)、元音清晰度指数(vowel articulation index, VAI);提取复韵母/ai/、/ua/、/uai/的第二共振峰并计算其斜率,比较不同语料任务下两组受试者的声学指标。结果 单韵母任务下,患者组/a/的F1、/i/的F2、下颌距、舌距、VSA、VAI极显著小于正常对照组(P<0.01),/u/的F2极显著大于正常对照组(P<0.01);复韵母任务下,患者组/ai/、/ua/、/uai/的F2斜率均显著小于正常对照组(P<0.05)。结论 神经性言语障碍患者单韵母构音运动范围减小,运动位置呈现集中趋势;复韵母构音运动速度减慢。
关键词
神经性言语障碍;韵母;构音运动
基金项目(Foundation):
国家社会科学基金一般项目(19BYY093)
作者
陈佳梅;万勤;梁佳静;惠芬芬;乔红粉;舒文卓
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