Abstract:
CONCLUSION:There are two modalities of dual electrode stimulation: a shifting, continuous excitation, which is the desired effect, and a split excitation with considerable variation in loudness. The first one most likely occurs in the basal turn, with adjacent contacts, stimulated simultaneously rather than sequentially. OBJECTIVES:This study examines the effects on place pitch and loudness of simultaneous current steering and sequential stimulation. These can give cochlear implant patients access to more perceptual channels than physical contacts in the electrode array. MATERIALS AND METHODS:For both lateral wall and perimodiolar electrodes, simultaneous current steering as well as sequential stimulation, place pitch and loudness of the percept were predicted with a computational model of the implanted human cochlea. The loudness predictions were validated with psychophysical loudness balancing experiments. RESULTS:Simultaneous stimulation with adjacent electrode contacts in the basal end of the cochlea was generally able to produce a single, gradually shifting intermediate pitch percept. Simultaneous stimulation beyond the first cochlear turn, sequential stimulation and simultaneous stimulation with non-adjacent electrode contacts often produced two regions of excitation. In the case of sequential stimulation the total amount of current to reach most comfortable loudness was raised, both in the model and in the patients.
journal_name
Acta Otolaryngoljournal_title
Acta oto-laryngologicaauthors
Frijns JH,Kalkman RK,Vanpoucke FJ,Bongers JS,Briaire JJdoi
10.1080/00016480802610218subject
Has Abstractpub_date
2009-04-01 00:00:00pages
433-9issue
4eissn
0001-6489issn
1651-2251pii
907305756journal_volume
129pub_type
杂志文章abstract::The MRL/lpr mouse, which is homozygous for the recessive lpr genes and has a mutation in the Fas gene encoding a cell-surface receptor for apoptosis, exhibits severe lymphadenopathy and develops systemic lupus erythematosus (SLE)-like disease. It has recently been reported that this mouse also manifests sensorineural ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480310015344
更新日期:2004-01-01 00:00:00
abstract:CONCLUSIONS:Local administration of MP delivered by the C/GP-MP-hydrogel can improve the recovery of facial nerve following crush injury. The findings suggested that locally injected MP delivered by C/GP-hydrogel might be a promising treatment for facial nerve damage. OBJECTIVES:In this study, the aim is to assess the...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:
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abstract:CONCLUSIONS:The critical stage for cochlear gene regulation in the embryo is E49-E56. These data provide a valuable resource to help elucidate gene regulation in cochlear development and will benefit ear-related studies, especially those that focus on gene and stem cell therapies in hearing loss. OBJECTIVES:To investi...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2017.1341641
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abstract::POLGON (Polarized light goniometer) was used to evaluate ataxia during stepping movements in patients with spinocerebellar degeneration (SCD) and Parkinson's disease. The measurements included mean angular change of shoulders (M.A.C.S.) and its coefficient of variation (C.V.). In patients with SCD, the values of M.A.C...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489309135847
更新日期:1993-07-01 00:00:00
abstract:CONCLUSION:These findings indicate a strong protective effect of ALCAR and NAC on impulse noise-induced cochlear damage, and suggest the feasibility of using clinically available antioxidant compounds to protect the ear from acute acoustic injury. OBJECTIVE:Reactive oxygen species have been shown to play a significant...
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pub_type: 杂志文章
doi:10.1080/00016480410023038
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abstract::A questionnaire was devised to quantify and measure four categories: the behavioral characteristics of Type A, self-restraint and escape; the causes of anxiety; means of relaxation; and symptoms incidental to anxiety. Questionnaire analysis was performed in patients (n = 60) with Meniere's disease and in a control pop...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/000164801300043721
更新日期:2001-01-01 00:00:00
abstract:CONCLUSION:SOD1 is an important gene related to noise-induced hearing loss (NIHL), and its effect is dependent on noise exposure levels. OBJECTIVES:To test whether the polymorphisms in the CuZn-superoxide dismutase gene (SOD1) are associated with susceptibility to NIHL in the Chinese population. METHODS:Audiometric d...
journal_title:Acta oto-laryngologica
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更新日期:2010-04-01 00:00:00
abstract::In consecutive series of 326 laryngeal cancer patients, of 29 (9%) with stage T3N0 glottic carcinomas, 23 achieved complete local remission after curative radiotherapy and form the basis of the present investigation. Flow cytometry determinations of DNA-ploidy status and the S-phase fraction, and a "histopathological ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489309135796
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doi:10.3109/00016489.2012.655861
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488009127103
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489109138399
更新日期:1991-01-01 00:00:00
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/000164801300043523
更新日期:2001-01-01 00:00:00
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journal_title:Acta oto-laryngologica
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doi:10.3109/00016489.2010.522593
更新日期:2011-03-01 00:00:00
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pub_type: 杂志文章
doi:10.3109/00016488009127111
更新日期:1980-01-01 00:00:00
abstract::Volumetric changes of the scala media were histologically investigated in normal guinea pigs to see whether glycerol-induced volumetric change of the scala media followed a biphasic course similar to the auditory threshold in the glycerol test. Glycerol was administered orally in a 12 ml/kg dose. The volume of the sca...
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更新日期:1999-01-01 00:00:00
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2016.1276302
更新日期:2017-07-01 00:00:00
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489409126103
更新日期:1994-09-01 00:00:00
abstract:CONCLUSION:Extensive bone erosion correlated with a worse prognosis of the squamous cell carcinoma (SCC) of the temporal bone but extensive soft tissue involvement did not correlate with prognosis in this study. Resectability of the tumor seems to be major prognostic factor of temporal bone SCC. OBJECTIVE:Prognostic f...
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doi:10.3109/00016480802642096
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journal_title:Acta oto-laryngologica
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488209130869
更新日期:1982-01-01 00:00:00
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480601053032
更新日期:2007-08-01 00:00:00
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2012.657359
更新日期:2012-08-01 00:00:00
abstract:CONCLUSION:The increased AQP5 expression associated with ageing in glands, which mainly secreted a serous solution, suggests a compensation for the decreased amount of saliva secretion associated with age progression. OBJECTIVE:To investigate the change in aquaporin-1 (AQP1) and aquaporin-5 (AQP5) expression in the sa...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2016.1165353
更新日期:2016-09-01 00:00:00
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2014.894250
更新日期:2014-06-01 00:00:00
abstract::The efferent cochlear system, composed of both ipsi- and contralateral bundles, runs along with the vestibular nerve and may serve as protection for the inner ear. Sectioning of the vestibular nerve could thus create an experimental model for further in-depth study of such a protective role. A personal surgical approa...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489950181602
更新日期:1999-03-01 00:00:00
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487709123967
更新日期:1977-09-01 00:00:00
abstract:CONCLUSION:The average recovery of hearing and cessation of tinnitus was significantly better after treatment with Radix Astragali (RA) than after non-treatment with RA. RA can be valuable adjuvant therapy for patients with acute acoustic trauma (AAT). OBJECTIVES:AAT is one of the early indications for the use of RA. ...
journal_title:Acta oto-laryngologica
pub_type: 临床试验,杂志文章
doi:10.3109/00016489.2011.591823
更新日期:2011-10-01 00:00:00
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2018.1490030
更新日期:2018-10-01 00:00:00