Hitchcock Elaine R, Byun Tara McAllister
Department of Communication Sciences and Disorders, Montclair State University , Bloomfield, NJ , USA and.
Clin Linguist Phon. 2015 Jan;29(1):59-75. doi: 10.3109/02699206.2014.956232. Epub 2014 Sep 12.
Biofeedback intervention can help children achieve correct production of a treatment-resistant error sound, but generalisation is often limited. This case study suggests that generalisation can be enhanced when biofeedback intervention is structured in accordance with a "challenge point" framework for speech-motor learning. The participant was an 11-year-old with residual /r/ misarticulation who had previously attained correct /r/ production through a structured course of ultrasound biofeedback treatment but did not generalise these gains beyond the word level. Treatment difficulty was adjusted in an adaptive manner following predetermined criteria for advancing, maintaining, or moving back a level in a multidimensional hierarchy of functional task complexity. The participant achieved and maintained virtually 100% accuracy in producing /r/ at both word and sentence levels. These preliminary results support the efficacy of a semi-structured implementation of the challenge point framework as a means of achieving generalisation and maintenance of treatment gains.
生物反馈干预可以帮助儿童正确发出难以矫治的错误语音，但泛化效果往往有限。本案例研究表明，当生物反馈干预按照言语运动学习的“挑战点”框架进行构建时，泛化效果可以得到增强。参与者是一名11岁的儿童，存在/r/音误发，此前通过结构化的超声生物反馈治疗课程已能正确发出/r/音，但这些进步并未在单词层面之外得到泛化。按照预先确定的标准，在功能任务复杂性的多维层次结构中推进、维持或退回一个水平，以适应性方式调整治疗难度。参与者在单词和句子层面发出/r/音时几乎都达到并维持了100%的准确率。这些初步结果支持了以半结构化方式实施挑战点框架作为实现治疗效果泛化和维持的一种手段的有效性。
