Visual Analog Scale Ratings and Orthographic Transcription Measures of Sentence Intelligibility in Parkinson's Disease With Variable Listener Exposure
Visual Analog Scale Ratings and Orthographic Transcription Measures of Sentence Intelligibility in Parkinson's Disease With Variable Listener Exposure
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DOI：
10.1044/2019_ajslp-18-0275
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发表时间：
2019-08-01
影响因子：
2.6
通讯作者：
Steppa, Cara E.
中科院分区：
文献类型：
--
作者：
Abur, Defne;Enos, Nicole M.;Steppa, Cara E.
目的：虽然正字法转录（OT）是衡量可理解性的黄金标准，但它对临床医生来说是相对难以接近的。本研究探讨了视觉模拟量表（VAS）评分与OT测量帕金森病（PD）说话人可理解性之间的关系，最终目的是开发更多临床可行的可理解性评估。方法：20名PD患者和5名对照者朗读11个句子。首先，33名听众用每位演讲者的一句话完成一项OT任务。另外33名听众使用VAS对每位演讲者的1句话的可理解性进行评分，这反映了最小化暴露VAS （MEV）任务。最后，另外14名听众每人使用VAS对所有说话者产生的所有11个句子的可理解性进行评分，这反映了延长暴露VAS （EEV）任务。从每个VAS任务中模拟较小的听众组，以便与OT任务的分数进行比较。结果：OT与MEV和EEV均有较强的相关性。即使在每个句子中只模拟1个MEV听众和2个EEV听众时，这种关系仍然很强（R-2 >= 0.82）。结论：VAS评分可能是PD的句子可理解性的一个合适的替代OT测量方法，使用听众对刺激的最小和延长暴露。
Purpose: While orthographic transcription (OT) is the gold standard for measures of intelligibility, it is relatively inaccessible to clinicians. This study investigates the relationship between visual analog scale (VAS) ratings and OT measures of intelligibility for speakers with Parkinson's disease (PD), with the eventual goal of developing more clinically feasible assessments of intelligibility.Method: Twenty speakers with PD and 5 controls read 11 sentences. First, 33 listeners completed an OT task using 1 sentence from each speaker. An additional 33 listeners rated the intelligibility of 1 sentence from each speaker using a VAS, reflecting a minimized exposure VAS (MEV) task. Lastly, 14 additional listeners each rated the intelligibility of all 11 sentences produced by all speakers using a VAS, reflecting an extended exposure VAS (EEV) task. Smaller listener groups were simulated from each VAS task for comparison to scores from the OT task.Results: There was a strong relationship between OT and both MEV and EEV. This relationship remained strong (R-2 >= .82) even when only 1 listener in MEV and 2 listeners in EEV were simulated per sentence.Conclusions: VAS ratings may be a suitable alternative to OT measures of sentence intelligibility for PD using listeners with both minimal and extended exposure to the stimuli.