نتایج جستجو برای: cochlear

تعداد نتایج: 15864  

2014
Kunio Mizutari

Cochlear fibrocytes in the lateral wall region play a critical role in the regulation of inner ear ion and fluid homeostasis, although these are non-sensory cells. Along with other non-sensory cells, fibrocytes in the spiral ligament have been reported to repopulate themselves after damage. However, the studies of regeneration of cochlear fibrocytes have been difficult because a suitable fibroc...

Journal: :The international tinnitus journal 2006
Ema Yonehara Raquel Mezzalira Paulo R C Porto Walter A Bianchini Luciane Calonga Silvia Badur Curi Guita Stoler

Suppression of tinnitus by electrical stimulation via a cochlear implant has been studied in recent years. Some individuals who undergo cochlear implant surgery report total or partial relief of the symptoms even in the contralateral ear. The mechanisms involved in this suppression are not clear. The results obtained in our study demonstrated an improvement of 71% in 29 implant cases, confirmin...

Journal: :Archives of pediatrics & adolescent medicine 2012
Tinne Boons Jan P L Brokx Johan H M Frijns Louis Peeraer Birgit Philips Anneke Vermeulen Jan Wouters Astrid van Wieringen

OBJECTIVE To examine spoken language outcomes in children undergoing bilateral cochlear implantation compared with matched peers undergoing unilateral implantation. DESIGN Case-control, frequency-matched, retrospective cross-sectional multicenter study. SETTING Two Belgian and 3 Dutch cochlear implantation centers. PARTICIPANTS Twenty-five children with 1 cochlear implant matched with 25 ...

2016
Dongyan Fan Hailong Ren Dunzhu Danzeng Haonan Li Ping Wang

The aim of the present study was to observe the histological changes in the peripheral auditory system in rats at different time-points after relocating from low altitude to high altitude (3,600 m). The general physical condition of the rats was observed and cochlear tissue samples were obtained every month. The morphology and survival of the cochlear hair cells (HCs) were observed using cochle...

Journal: :Advances in oto-rhino-laryngology 2006
Andrej Kral Jochen Tillein

The benefit of cochlear implantation crucially depends on the ability of the brain to learn to classify neural activity evoked by the cochlear implant. Brain plasticity is a complex property with massive developmental changes after birth. The present paper reviews the experimental work on auditory plasticity and focuses on the plasticity required for adaptation to cochlear implant stimulation. ...

Journal: :The Journal of the Acoustical Society of America 1986
S T Neely D O Kim

A linear, mathematical model of cochlear biomechanics is presented in this paper. In this model, active elements are essential for simulating the high sensitivity and sharp tuning characteristic of the mammalian cochlea. The active elements are intended to represent the motile action of outer hair cells; they are postulated to be mechanical force generators that are powered by electrochemical e...

2012
Jae-Cheul Ahn Shin-Hye Kim Byung Yoon Choi

The narrow bony cochlear nerve canal in high resolution temporal bone computed tomography is frequently found in patients of congenital sensorineural hearing loss. But this bony structural anomaly could not conclude the functional outcome of cochlear nerve. Here, we present a case of a 14-month-old girl having bilateral narrow bony cochlear nerve canals. In magnetic resonance imaging, both the ...

Journal: :Hearing research 2010
J Ashmore P Avan W E Brownell P Dallos K Dierkes R Fettiplace K Grosh C M Hackney A J Hudspeth F Jülicher B Lindner P Martin J Meaud C Petit J Santos-Sacchi B Canlon

This composite article is intended to give the experts in the field of cochlear mechanics an opportunity to voice their personal opinion on the one mechanism they believe dominates cochlear amplification in mammals. A collection of these ideas are presented here for the auditory community and others interested in the cochlear amplifier. Each expert has given their own personal view on the topic...

Journal: :Brain research 1996
A A Saada J K Niparko D K Ryugo

Investigations in animal models and humans have indicated that congenital deafness produces degenerative changes in the central auditory pathway. The cochlear nucleus is the first central structure that receives cochlear input, and may be considered the origin of ascending auditory pathways. In this context, we studied congenitally deaf white cats, who express early onset cochlear receptor loss...

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