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Generalised EPG treatment effect in a cochlear implant user maintained after 2 years
Marja Öller Darelid1, Lena Hartelius1, Anette Lohmander2
1a Division of Speech and Language Pathology, Institute of Neuroscience and Physiology, University of Gothenburg , Göteborg , Sweden.
International Journal of Speech-Language Pathology
|June 30, 2015
Summary
Electropalatography (EPG) home training effectively improved articulation errors in a cochlear implant user with hearing impairment. The positive speech therapy effects were maintained long-term, even in connected speech.
Area of Science:
- Audiology
- Speech-Language Pathology
- Biomedical Engineering
Background:
- Persistent articulation errors can significantly impact communication for individuals with hearing impairment.
- Cochlear implantation is a common intervention, but residual speech challenges may persist.
- Electropalatography (EPG) offers visual feedback for tongue-palate contact during speech production.
Observation:
- A single-subject design evaluated the efficacy of EPG-guided home speech therapy.
- The participant was a young woman with pre-lingual deafness and early cochlear implant use.
- Treatment focused on persistent articulation errors, specifically the /ɡ/ sound.
Findings:
- Significant improvements in /ɡ/ production were observed in single words and sentences after 4 months of EPG therapy.
- These gains were maintained at 3, 6, and 24 months post-intervention.
- Transfer to connected speech (reading and spontaneous) was also significant and long-lasting.
Implications:
- EPG-based home training is an efficient method for addressing persistent speech disorders in cochlear implant users.
- The study demonstrates the long-term maintenance of therapeutic effects.
- This approach holds promise for improving speech intelligibility and quality of life.

