This paper investigates suprasegmental features in the prelexical speech of congenitally hearing impaired children who received a Nucleus-24 multichannel cochlear implant between 5 and 20 months of age. Bi-syllabic spontaneous babbling productions were analyzed acoustically at different stages in the babbling period. Fundamental frequency, pitch change in terms of direction and degree, and dura...

Cochlear frequency selectivity plays a key role in our ability to understand speech, and is widely believed to be associated with cochlear amplification. However, genetic studies targeting the tectorial membrane (TM) have demonstrated both sharper and broader tuning with no obvious changes in hair bundle or somatic motility mechanisms. For example, cochlear tuning of Tectb(-/-) mice is signific...

Programming of multichannel cochlear implants requires subjective responses to a series of sophisticated psychophysical percepts. It is often difficult for cochlear implant patients (especially young prelinguistically deaf children) to provide adequate responses for device fitting. However, the neural response telemetry (NRT) system renders possible the measurement of the compound action potent...

BACKGROUND AND PURPOSE Typewriter tinnitus, a symptom characterized by paroxysmal attacks of staccato sounds, has been thought to be caused by neurovascular compression of the cochlear nerve, but the correlation between radiologic evidence of neurovascular compression of the cochlear nerve and symptom presentation has not been thoroughly investigated. The purpose of this study was to examine wh...

Responses of 99 cochlear nucleus cells and 24 cochlear nerve fibers were studied with FM signals; 14 cochlear nerve fibers and 57 cochlear nucleus cells were studied at four rates of modulation and several signal intensities. Classification of FM response patterns as symmetrical, asymmetrical, or unidirectional was based on the calculation of a symmetry factor (S), which compared the number of ...

BACKGROUND Research suggests that for individuals with significant low-frequency hearing, implantation of a short-electrode cochlear implant may provide benefits of improved speech perception abilities. Because this strategy combines acoustic and electrical hearing within the same ear while at the same time preserving low-frequency residual acoustic hearing in both ears, localization abilities ...

background and aim: this article carries out a literature review of the quality and limitations of the narrative-based language intervention (nbli) for preschool and school-age hearing aided and cochlear implanted children. recent findings: the authors conducted a comprehensive search of electronic databases such as web of science, scopus, pubmed, google scholar, cochrane, and proquest from 198...

introduction: children with cochlear implants (cis) may experience few opportunities for positive musical experiences, and musical perception is therefore often not sufficiently developed. this paper investigates and discusses the relationship between intelligence quotient (iq) and musical ability in children with cis compared with children with normal hearing.                                  ...

−Finite element analysis is used to compute the current distribution of the human cochlea during cochlear implant electrical stimulation. Genetic algorithms are then applied in conjunction with the finite element analysis to optimize the shape of cochlear implant electrode array based on the energy deposited in the spiral ganglion cells region. The goal is to improve the focus of electrical ene...

Dehiscence of the cochlear otic capsule has recently been described as a pathologic entity. We describe two cases of cochlear-facial dehiscence, which are the first reported: a 69-year-old male who complained of hearing loss, autophony, and pulsatile tinnitus and a 41-year-old female who complained of left-sided hearing loss, pulsatile tinnitus, and vertigo. In both, computed tomography (CT) sh...