Wambaugh Julie, Shuster Linda, Bailey Dallin J, Mauszycki Shannon, Kean Jacob, Nessler Christina, Wright Sandra, Brunsvold Jessica
VA Salt Lake City Health Care System, UTUniversity of Utah, Salt Lake City.
Western Michigan University, Kalamazoo.
Am J Speech Lang Pathol. 2016 Dec 1;25(4S):S716-S728. doi: 10.1044/2016_AJSLP-15-0139.
The ability to recognize one's own speech errors has long been considered a clinical feature of acquired apraxia of speech (AOS) despite limited empirical data supporting this notion. This study was designed to (a) investigate the ability of speakers with AOS to self-judge the accuracy of their own word productions and (b) examine the test-retest stability of a measure to quantify the self-judgments of speakers with AOS.
Twenty-four speakers with AOS and aphasia repeated mono- and multisyllabic words. After each word, they indicated whether their production was correct or incorrect. This procedure was repeated 1 week later to examine performance stability.
Percentage of incorrect word productions was stable for the group across times. Accuracy of judgments ranged from 64% to 100% at Time 1 and from 56% to 100% at Time 2. Inaccurate judgments of error productions (false positives) occurred much more frequently than inaccurate judgments of correct productions (false negatives).
Error production was remarkably stable in our participants. As a group, the participants failed to detect almost one third of words produced erroneously. However, accuracy and stability of judgments over sampling times varied across participants. Findings suggest that error awareness might be a worthwhile target for treatment in some individuals with AOS.
长期以来，能够识别自己的言语错误一直被视为获得性言语失用症（AOS）的一项临床特征，尽管支持这一观点的实证数据有限。本研究旨在（a）调查患有AOS的说话者自我判断其单词发音准确性的能力，以及（b）检验一种用于量化患有AOS的说话者自我判断的测量方法的重测稳定性。
24名患有AOS和失语症的说话者重复单音节和多音节单词。每个单词之后，他们指出自己的发音是否正确。1周后重复这一过程以检验表现的稳定性。
该组在不同时间的错误单词发音百分比是稳定的。判断的准确率在第一次测试时为64%至100%，在第二次测试时为56%至100%。对错误发音的不准确判断（假阳性）比正确发音的不准确判断（假阴性）出现得更为频繁。
我们的参与者的错误发音非常稳定。作为一个群体，参与者几乎未能检测出三分之一的错误发音单词。然而，不同参与者在不同采样时间的判断准确率和稳定性有所不同。研究结果表明，错误意识可能是一些患有AOS的个体治疗的一个有价值的目标。
