期刊
CLINICAL LINGUISTICS & PHONETICS
卷 30, 期 3-5, 页码 398-415出版社
TAYLOR & FRANCIS INC
DOI: 10.3109/02699206.2015.1135477
关键词
Cleft palate; perceptual speech evaluation; ultrasound; visual articulatory models
资金
- Queen Margaret University
Cleft Palate (CP) assessments based on phonetic transcription are the gold standard therapy outcome measure, despite reliability difficulties. Here we propose a novel perceptual evaluation, applied to ultrasound-visual biofeedback (U-VBF) therapy and therapy using visual articulatory models (VAMs) for two children with repaired submucous CP.Three comparisons were made: post VAM, post U-VBF and overall pre- and post-therapy. Twenty-two phonetically-trained listeners were asked to determine whether pre- or post-therapy recordings sounded closer to the English target, using their own implicit phonological knowledge (prompted via orthographic representation). Results are compared with segment-oriented percent target consonant correct (PTCC) derived from phonetic transcriptions.Listener judgements and PTCC suggest that both children made improvements using both VAM and U-VBF. Statistical analysis showed listener agreement in each comparison, though agreement was weak. However, perceptual evaluation offers a straightforward method of evaluating the effectiveness of interventions and can be used by phonetically trained or lay listeners.
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