Effects of visual information on intelligibility of open and closed class words in predictable sentences produced by speakers with dysarthria.
Effects of visual information on intelligibility of open and closed class words in predictable sentences produced by speakers with dysarthria.
复制标题
视觉信息对构音障碍说话者所产生的可预测句子中开放类和封闭类单词的可理解性的影响。
DOI：
10.1080/02699200701259150
复制
发表时间：
2007
影响因子：
1.2
通讯作者：
McCourt,KellyA
中科院分区：
文献类型：
--
作者：
Hustad,KatherineC;Dardis,CaitlinM;McCourt,KellyA
This study examined the independent and interactive effects of visual information and linguistic class of words on intelligibility of dysarthric speech. Seven speakers with dysarthria participated in the study, along with 224 listeners who transcribed speech samples in audiovisual (AV) or audio‐only (AO) listening conditions. Orthographic transcriptions from listeners were scored for the number of words identified correctly. Correctly identified words were then coded into two linguistic classes, open and closed. Results showed that across all speakers and listeners, the AV presentation mode resulted in significantly higher intelligibility scores than the AO mode. However, the difference was significant for only three of seven individual speakers. Results also showed that across all speakers and listeners, closed class words were more intelligible than open class words. The difference between linguistic classes was significant for six of seven individual speakers. The interaction between linguistic class and mode of presentation was not significant, indicating that the margin of benefit for closed class words was consistent across presentation modalities.
