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Tongue motion patterns in post-glossectomy and typical speakers: a principal components analysis
Journal of Speech, Language, and Hearing Research : JSLHR
|September 12, 2013
Summary
Glossectomy surgery impacts tongue motion, with tumor-side limitations not compensated by the non-tumor side. Principal component analysis distinguished patient and control tongue movements.
Area of Science:
- Speech motor control
- Biomechanics of speech production
- Surgical outcomes in head and neck cancer
Background:
- Glossectomy surgery, involving tongue resection, can affect speech articulation.
- Understanding compensatory tongue movements is crucial for speech rehabilitation after glossectomy.
Purpose of the Study:
- To investigate alterations in tongue motion following glossectomy.
- To assess compensatory movements on the non-resected side during speech tasks.
Main Methods:
- Tagged magnetic resonance imaging (tmri) was used to capture tongue motion.
- Principal component analysis (PCA) quantified and compared motion patterns between patients and controls.
Main Results:
- Principal components 1 and 2 captured variations in tongue tip size, independence, and motion direction.
- PCA effectively differentiated tongue motion between glossectomy patients and healthy controls.
Conclusions:
- Tongue motion on the resected side differed significantly between patients and controls.
- The non-tumor side did not exhibit compensatory hyper-articulation; adaptive strategies varied individually.
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