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Updated: Jun 13, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Language development in a hearing and a deaf twin with simultaneous bilateral cochlear implants
Caterina Ruggirello1, Connie Mayer
1York University. caterina_ruggirello@edu.yorku.ca
Abstract:
This case study is an examination of the language development of a single pair of fraternal twins--one with a profound, sensorineural hearing loss who received simultaneous bilateral cochlear implants at 1 year of age and the other with normal hearing. The purpose of the study was to compare the twins' language development over time from 6 months to almost 3 years of age. Findings suggest that early simultaneous bilateral implantation supports the development of age-appropriate language, thus increasing the potential for overall progress commensurate with hearing age peers.
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