The Plasticity of Auditory Processing in Patients with Cochlear Implant

Abstract

We investigated the maximum dissociation levels (C-I gap) of 10 patients received cochlear implantation at the age of 37 to 70 years old. The C-I gap was obtained for each patient by Bekesy audiometry test of pure tone of fixed signals and of continuous signals. Results indicated that the patients of a longer period of deafness had a greater C-I gap. Postoperatively, the dissociation gradually decreased, but the patients who experienced a longer period of deafness needed a rather long time to reduce the dissociation.