Cochlear implants partially restore auditory sensation in individuals affected by severe to profound hearing loss. We investigated vowel detection, identification, and discrimination in a group of congenitally-deafened, unilaterally-implanted, Italian children and in a group of age-matched controls, by combining behavioral and neurophysiologic measures. Comparable vowel identification and discr...

INTRODUCTION We report a case of successful rehabilitation of hearing with a cochlear implant in a patient with nasopharyngeal carcinoma who developed post-irradiation hearing loss following treatment. CLINICAL PICTURE A 55-year-old Chinese lady suffered from radiation-induced sensorineural hearing loss due to treatment for nasopharyngeal carcinoma. Audiological tests and imaging studies show...

For normal-hearing listeners, speech intelligibility improves if speech and noise are spatially separated. While this spatial release from masking has already been quantified in normal-hearing listeners in many studies, it is less clear how spatial release from masking changes in cochlear implant listeners with and without access to low-frequency acoustic hearing. Spatial release from masking d...

One of the most important findings in cochlear implant research has been the orderly variation in perceptual characteristics produced by intra­ cochlear electrodes in accordance with the tonotopic organization of the cochlea. The electrical signal dimension of electrode position has there­ fore been used extensively for presenting speech information to cochlear implant patients. This paper desc...

Nonword repetition skills were examined in 24 pediatric cochlear implant users and 18 normal-hearing adult listeners. The normal-hearing adult listeners heard spectrally degraded nonwords that were processed through an acoustic simulation of a cochlear implant designed to mimic the auditory input received by cochlear implant users. Two separate groups of normal-hearing adult listeners assigned ...

The primary objective of this study was to document the benefits and possible detriments of combining ipsilateral acoustic hearing in the cochlear implant ear of a patient with preserved low frequency residual hearing post cochlear implantation. The secondary aim was to examine the efficacy of various cochlear implant mapping and hearing aid fitting strategies in relation to electro-acoustic be...

One way to provide pitch information to cochlear implant users is through amplitude-modulation rate. It is currently unknown whether amplitude-modulation rate can provide cochlear implant users with pitch information adequate for perceiving melodic information. In the present study, the notes of a song were encoded via amplitude-modulation rate of pulse trains on single electrodes at the apex o...