The Effect of Front-End Processing on Cochlear Implant Performance of Children

• DOI: 10.1097/mao.0b013e318210b6ec
• Publication Date: 2011-03-25T04:46:51Z
• Authors: Jace Wolfe; Erin C. Schafer; Andrew John; Mary Hudson
• Keywords: QUIET

Previous research shows that children using cochlear implants experience significant difficulty with speech perception in noisy listening situations. There are several types of input signal processing available for the implant sound processor; however, there is a paucity to support this technology children. The primary objective study was examine potential benefits 2 processing, adaptive dynamic range optimization (ADRO) as compared autosensitivity (ASC) plus ADRO Cochlear Corporation implants.Cross-sectional repeated-measures design.Outpatient nonprofit foundation providing audiology services and auditory-verbal therapy.Eleven children, aged 4 years months 12 years, unilateral or bilateral Limited implants. All used their implant(s) at least 1 year, had no additional disabilities, were enrolled preschool elementary school, age-appropriate receptive expressive language.All either Nucleus Freedom 5 processor. Performance assessed while these ADRO-only ASC+ADRO processing.Speech PBK-50 monosyllabic words quiet BKB-SIN sentences noise measured each child. In conditions, strategies. data analyzed descriptive statistics, conditions 1-way analysis variance.All demonstrated word recognition above 90% correct. noise, sentence-perception performance condition significantly better than ADRO-alone condition.The results suggest substantial benefit from combining ASC ADRO, Specifically, adjust sensitivity processor microphone automatically has positive effects on speech-perception thresholds noise.