Treatment for Residual Rhotic Errors With High- and Low-Frequency Ultrasound Visual Feedback: A Single-Case Experimental Design.
Treatment for Residual Rhotic Errors With High- and Low-Frequency Ultrasound Visual Feedback: A Single-Case Experimental Design.
复制标题
用高频和低频超声视觉反馈治疗残余视差错：单例实验设计。
DOI：
10.1044/2018_jslhr-s-17-0441
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Whalen,DouglasH
中科院分区：
文献类型：
--
作者：
Preston,JonathanL;McAllister,Tara;Phillips,Emily;Boyce,Suzanne;Tiede,Mark;Kim,JackieS;Whalen,DouglasH
本研究的目的是探讨在言语治疗过程中提供超声视觉反馈的频率如何影响语音学习。方法12名有影响/ɹ/的残留言语错误的儿童参加了两种治疗条件下的多基线交叉受试者设计。一种情况是高频UVF(HF；89%的试验反馈)为8小时，而另一种情况包括8小时的低频UVF(LF；44%的试验)。治疗条件的顺序在参与者之间是平衡的。所有参与者都接受了声乐/ɹ/治疗。结果在第一个治疗阶段后，接受心力衰竭治疗的参与者的表现优于接受低频治疗的参与者。在两个阶段的治疗结束时，参与者内部的比较显示，在心力衰竭和低频条件下，个体结果存在差异。然而，对这个小样本的小组水平分析表明，治疗顺序为HF-LF的参与者比那些治疗顺序为LF-HF的参与者获得了更大的收益。结论在语音治疗中，HF-LF顺序可能代表了UVF的首选顺序。这与经验研究和理论论证相一致，表明视觉反馈在获得新的言语目标的早期阶段可能特别有益。
PurposeThe aim of this study was to explore how the frequency with which ultrasound visual feedback (UVF) is provided during speech therapy affects speech sound learning.MethodTwelve children with residual speech errors affecting /ɹ/ participated in a multiple-baseline across-subjects design with 2 treatment conditions. One condition featured 8 hr of high-frequency UVF (HF; feedback on 89% of trials), whereas the other included 8 hr of lower-frequency UVF (LF; 44% of trials). The order of treatment conditions was counterbalanced across participants. All participants were treated on vocalic /ɹ/. Progress was tracked by measuring generalization on /ɹ/ in untreated words.ResultsAfter the 1st treatment phase, participants who received the HF condition outperformed those who received LF. At the end of the 2-phase treatment, within-participant comparisons showed variability across individual outcomes in both HF and LF conditions. However, a group level analysis of this small sample suggested that participants whose treatment order was HF–LF made larger gains than those whose treatment order was LF–HF.ConclusionsThe order HF–LF may represent a preferred order for UVF in speech therapy. This is consistent with empirical work and theoretical arguments suggesting that visual feedback may be particularly beneficial in the early stages of acquiring new speech targets.