Abstract:
:We have recorded auditory evoked potentials, of both neurogenic and myogenic origin, in cats having neonatal high frequency cochlear hearing loss. Using frequency specific stimuli (tone pips) and by measuring responses near to threshold, we have probed tonotopic (or cochleotopic) representation within the brainstem-midbrain auditory pathway. At stimulus frequencies corresponding to the high frequency cut-off of the cats' audiograms we have observed enhanced amplitudes of both auditory brainstem evoked responses (ABR) and postauricular myogenic (PAM) potentials. We interpret our findings as evidence of a larger than normal population of neurons tuned to this frequency region. We suggest that such abnormal frequency representation results from a long-term sensory deficit caused by lesions to the basal, high frequency region of the cochleas.
journal_name
Acta Otolaryngoljournal_title
Acta oto-laryngologicaauthors
Harrison RV,Gordon DC,Nagasawa A,Stanton S,Ibrahim D,Mount RJdoi
10.3109/00016489309135763subject
Has Abstractpub_date
1993-01-01 00:00:00pages
31-8issue
1eissn
0001-6489issn
1651-2251journal_volume
113pub_type
杂志文章abstract::Nerves displaying vasoactive intestinal peptide (VIP) immunoreactivity were detected in the upper respiratory tract of guinea pigs, rabbits and cats. VIP nerves were numerous in the cat, less numerous in the rabbit and rare in the guinea pig. In the nasal mucosa, fine varicose VIP nerves were found to surround nasal g...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487809107524
更新日期:1978-11-01 00:00:00
abstract:CONCLUSION:The endoscopic approaches developed for the treatment of the chordomas according to the different clival location provide the possibility for more complete tumor resection with maximal preservation of anatomic structures and reduction of the overall incidence of complications. OBJECTIVE:The endoscope has re...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480801995404
更新日期:2009-01-01 00:00:00
abstract:CONCLUSIONS:The microarray analysis identified 39 genes up- or down-regulated by dexamethasone in the cultured tissue of mice cochlea. Of the eight genes most highly affected, several are suggested to have protective effects in the traumatized inner ear (Fkbp5, Glucocorticoid-induced leucine zipper (Gilz), glutathione ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2010.498836
更新日期:2010-12-01 00:00:00
abstract::To predict the possible benefit of a cochlear implant to a patient, the clinician requires a reliable objective method to monitor the presence of surviving fibres in the 8th nerve. The subjective promontory test and the evaluation of electrically evoked brainstem potentials are not adequate. An electrical stimulus art...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489409126093
更新日期:1994-09-01 00:00:00
abstract::Nine subjects with long-term (8-30 years) occupational exposure to industrial solvents and a confirmed diagnosis of psycho-organic syndrome (POS) have been studied with audiological and otoneurological test batteries. The results were compared to a matched control group of nine industrial workers not exposed to solven...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488909127473
更新日期:1989-01-01 00:00:00
abstract::Glycerol (2 g/kg body weight), or 0.15 M NaCl for control animals, was administered to rats by i.v. injection. The dose was chosen in order to obtain an osmolarity increase in plasma of about 15 mosm/l 1 h after the glycerol administration, an increase which is similar to that observed in the human glycerol dehydratio...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489609137887
更新日期:1996-07-01 00:00:00
abstract::In a previous study, the authors described a technique for recording ipsilateral EABRs using the DIGISONIC MXM cochlear implant (Gallégo et al, Acta Otolaryngol (Stockh) 1996; 116: 228-33) and showed that the EABR input/output functions were very similar across electrodes. In the present study a test of electrode func...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489709117761
更新日期:1997-03-01 00:00:00
abstract:CONCLUSIONS:The intra-tumoral cytokines IL-6, hepatocyte growth factor (HGF) and tumour necrosis factor-a (TNF-a) stimulate oral cancer cells to enhanced secretion of matrix metalloproteinase (MMP)-1 and -9. These results contribute to an understanding of the extracellular events necessary for tumour progression. OBJE...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480510027484
更新日期:2005-07-01 00:00:00
abstract:OBJECTIVE:To develop a large animal model for studies of laryngeal abductor reinnervation. MATERIAL AND METHODS:Six minipigs underwent unilateral anastomosis of the phrenic nerve-abductor branch of the recurrent laryngeal nerve (RLN). Polyhydroxybutyrate (PHB) conduits were used for repair. At each of 30, 60 and 120 d...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480410022507
更新日期:2004-09-01 00:00:00
abstract::Patients with Bell's palsy were investigated with regard to the cellular immune response during the acute and convalescent stages with the purpose of acquiring information concerning the etiology of the condition. In order to ascertain whether there was activation of the immune system, the proportion of activated T ce...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488809119452
更新日期:1988-01-01 00:00:00
abstract::A time-sequence study was made of the early ultrastructural changes of the stria vascularis and Reissner's membrane in the guinea pig after obliteration of the endolymphatic sac and duct. Pathological alterations of both the stria vascularis and Reissner's membrane were found to start in the apex of the cochlea. The m...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488709107319
更新日期:1987-09-01 00:00:00
abstract:OBJECTIVE:The purpose of this prospective study was to analyze the effect of glasses and contact lenses on the latency and velocity of visually evoked saccadic eye movements. MATERIAL AND METHODS:A saccadic test was performed 10 times on 20 emmetropic controls (Group A) and 20 ametropic test subjects with myopia (Grou...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:
更新日期:2003-05-01 00:00:00
abstract:CONCLUSIONS:We conclude that the capsaicin inhalation test is useful to directly assess cough reflex and sensation around the larynx, while it indirectly reflects central nervous system function. OBJECTIVES:To understand the state of the cough reflex before patients with dysphagia start eating. METHODS:We studied the...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2010.516013
更新日期:2011-01-01 00:00:00
abstract:CONCLUSION:Computed tomography (CT) in nasal polyposis (NP) patients has three functions before any treatment. CT provides objective evidence of the disease and precise topography of the disease, and is an indicator of the disease severity. After functional endoscopic sinus surgery (FESS), CT is an indicator of the res...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480701551760
更新日期:2008-03-01 00:00:00
abstract::In a study on the effects of a frequency-dependent automatic gain control in hearing-aids, two experiments were carried out with hearing-impaired listeners. In the first experiment, the effect of varying the amplitude-frequency response on the speech-reception threshold (SRT) of sentences presented in noise was studie...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.1990.12088430
更新日期:1990-01-01 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
abstract::Background: Chronic rhinosinusitis (CRS) is an inflammatory disease of the nose and the paranasal sinuses, often associated with an infection by Staphylococcus aureus (S. aureus). Disturbance in the function of ion channels is regarded as an etiological factor for pathogenesis of CRS. Aims: The study aims to measure t...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2019.1603513
更新日期:2019-07-01 00:00:00
abstract::This study correlates static and flow-cytometric analysis on paraffin-embedded and fresh material of salivary gland carcinomas. Nuclear suspensions for DNA analysis were prepared from paraffin-embedded and fresh material. Comparison of the results of static and flow cytometry on paraffin-embedded material revealed no ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489950181080
更新日期:1999-01-01 00:00:00
abstract:CONCLUSION:The technology of stimulation rates between 1500 and 5000 pulses per second per channel (pps/ch) brings a benefit for all users. However, the fastest possible rate does not necessarily lead to best hearing performance in each individual subject. Individual optimization of stimulation rate is recommended. OB...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016480902971239
更新日期:2010-01-01 00:00:00
abstract::Background: It is beneficial for CI patients listen to music. However it is necessary to take steps to improve the musicality of CI patients.Objectives: The aims of the study were to evaluate the primary musicality of children with cochlear implants versus those with normal hearing.Material and methods: Children parti...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2020.1766699
更新日期:2020-09-01 00:00:00
abstract::From a study of nitric oxide (NO) output in the nose and sinuses it seems that: (i) the results obtained regarding the regulation of NO output in the nose do not necessarily apply to the sinuses; (ii) the results obtained for one group of sinuses may not apply to another; and (iii) NO output in the sinuses does not be...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480510031524
更新日期:2005-10-01 00:00:00
abstract::The ultrastructure of the epithelial cells of the endolymphatic duct in the rat is described, following vascular perfusion-fixation of live, anaesthetised and artificially respirated animals. The animals were fixed by means of a pressure feed-back controlled peristaltic pump and an isotonic perfusate-fixative containi...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489409126013
更新日期:1994-01-01 00:00:00
abstract:CONCLUSION:Vibrant Soundbridge (VSB) application to the middle ear windows yields better functional outcomes than conventional hearing aids. However, speech discrimination scores obtained with VSB and conventional hearing aids are similar. OBJECTIVE:To assess audiological outcomes of round and oval window applications...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2012.702353
更新日期:2012-12-01 00:00:00
abstract::The effects of transdermally administered scopolamine (TTS-scopolamine) (release rate 5 micrograms/h, one and two patches) and dimenhydrinate (100 mg) on caloric, angular acceleration induced and optokinetic nystagmus were examined in 16 volunteers in a randomized double-blind study. All drugs induced a statistically ...
journal_title:Acta oto-laryngologica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00016488509182266
更新日期:1985-05-01 00:00:00
abstract::Recent investigations of children with specific language impairment (SLI) have found deviant anatomical asymmetry of the perisylvian cortex. These studies argue that this deviant anatomical asymmetry is linked to the language disorders of SLI children. To date no studies have examined whether deviant functional asymme...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/000164801300043929
更新日期:2001-01-01 00:00:00
abstract::The present morphological study was designed to investigate the expression of HLA class II subregion gene products on human trachea. Frozen sections from the tracheas of 20 cadavers not suffering from ear, nose or throat diseases were studied immunohistochemically using monoclonal antibodies which recognize monomorphi...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489009122530
更新日期:1990-07-01 00:00:00
abstract:CONCLUSIONS:Polytetrafluoroethylene (PTFE) may represent a material that prevents adhesions when implanted in the middle ear. This characteristic can be used to improve the design of prostheses. OBJECTIVE:Prostheses in the middle ear have a relatively high failure rate due to extrusion, deformation and adhesion. Adhes...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480500312570
更新日期:2006-02-01 00:00:00
abstract::Morphology of the tympanic membrane (TM) and external auditory canal (EAC) was studied in healthy, intact rat ears. TM-perforated ears (3 days after making the perforation) and TM-perforation-healed ears (14, 28 and 42 days after making the perforation). In intact ears, the epidermis in the annular region of the EAC d...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489609137939
更新日期:1996-11-01 00:00:00
abstract::Detailed longitudinal studies of speech perception, speech production and language acquisition have justified a significant change in the demographics of congenitally and prelingually deaf children who receive cochlear implants. A trend toward earlier cochlear implantation has been justified by improvements in measure...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489950181701
更新日期:1999-03-01 00:00:00
abstract::Racial differences in the size, shape and structure of the cranium exist. This paper evaluates the importance of race in influencing the required sizes of craniotomies for gaining access to the lateral end of the internal auditory meatus without breaching the labyrinth via the retrosigmoid approach. Fine-cut CT scans ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489509139402
更新日期:1995-11-01 00:00:00