Teaching consonants to profoundly hearing-impaired speakers using palatometry

Area of Science:

• Speech-Language Pathology
• Audiology
• Linguistics

Background:

• Hearing impairment significantly impacts speech development.
• Traditional speech therapy may not fully address articulatory deficits.
• Palatometry offers a novel approach to visualize speech production.

Purpose of the Study:

• To assess the efficacy of palatometry in teaching consonants to profoundly hearing-impaired children.
• To evaluate improvements in linguapalatal contact patterns and listener perceptions.
• To determine the effectiveness of visual articulatory modeling for speech intelligibility.

Main Methods:

• Five profoundly hearing-impaired children received speech therapy using palatometry.
• Training focused on the production of consonants /t, d, k, g, s, z/.
• Linguapalatal contact patterns and listener perceptions were analyzed pre- and post-therapy.

Main Results:

• Significant improvements were observed in the place and manner of consonant production.
• Velar stops were learned as effectively as alveolar stops.
• New sounds were learned more accurately than existing, inaccurate sounds; voicing errors persisted.

Conclusions:

• Palatometry provides effective visual feedback for teaching consonants to hearing-impaired children.
• This method improves consonant production accuracy and speech intelligibility.
• Coarticulation skills may develop as a byproduct of palatometry-based therapy.