Abstract:
CONCLUSION:Saccular and utricular maculae can provide information on the supine static position, considering that both have pronounced curved structures with hair cells having a variety of polarization vectors that enable them to sense an inverted position and thus direct the righting reflex. OBJECTIVE:The vestibular system is essential for the structuring of motor behaviour, senses linear and angular acceleration and has a strong influence on posture and balance at rest, during locomotion and in head body righting reflexes. MATERIAL AND METHODS:Using guinea pigs in the supine position with a symmetrical head and trunk position, the ocular position was analysed to ascertain whether any ocular movement that occurred would adopt a spatial deviation indicative of the subsequent head and body righting. The characteristics of the righting reflex (direction, latency, duration and velocity) were analysed in guinea pigs from position signals obtained from search coils implanted in the eye, head and pelvis. The animals were kept in a supine position for a few seconds or even minutes with the eyes in a stable primary position and the head and body symmetrical and immobile. RESULTS:The righting reflex took place either immediately or after a slow deviation of the eyes. In both cases the righting sequence (eyes, head, body) was stereotyped and consistent. The direction of head and body righting was along the longitudinal axis of the animal and was either clockwise or anticlockwise and the direction of righting was related to the direction of the eye deviation. The ocular deviation and the direction of deviation that initiated and determined the direction of the righting reflex could be explained by possible otolithic activation.
journal_name
Acta Otolaryngoljournal_title
Acta oto-laryngologicaauthors
Troiani D,Ferraresi A,Manni Edoi
10.1080/00016480510036448subject
Has Abstractpub_date
2005-05-01 00:00:00pages
499-502issue
5eissn
0001-6489issn
1651-2251journal_volume
125pub_type
杂志文章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:CONCLUSIONS:The present study revealed that miR-21 promotes the proliferation and invasion of cholesteatoma keratinocytes. These results provide a partial explanation for the more aggressive clinical behavior observed in cholesteatoma. OBJECTIVE:This study aims to investigate the post-transcriptional regulatory effect...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2016.1202447
更新日期:2016-12-01 00:00:00
abstract::Losses (determined by measuring microphonic responses) were essentially identical, regardless of whether produced by admittance of sound into the middle ear via perforations in the tympanic membrane (TM) or in the bulla. With SPLs monitored directly at the TM, losses increased at 12 dB/oct with inverse frequency for f...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487609119970
更新日期:1976-03-01 00:00:00
abstract::The vascular pattern of the rat cochlea was demonstrated by the aid of Berlin Blue (Prussian Blue) contrast. The vascular anatomy is similar to other mammals. The infrequent occurrence of the vessel of the basilar membrane under the organ of Corti is interesting in respect to its presumed importance for the oxygen sup...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488009127102
更新日期:1980-01-01 00:00:00
abstract:BACKGROUND:Differential diagnosis of persistent vertigo/dizziness in patients with a past history of vestibular neuritis (VN) and sudden deafness with vertigo (SDV) could sometimes be difficult for physicians due to variable vertiginous symptoms from rotatory to floating sensation. OBJECTIVES:The main purpose of the p...
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pub_type: 杂志文章
doi:10.1080/00016489.2020.1813327
更新日期:2020-12-01 00:00:00
abstract::The subjective visual horizontal (SVH) was measured by means of a small, rotatable, luminous line in darkness in the upright head and body position and at 10, 20 and 30 degrees of tilt to the right and left before, and repeatedly during a follow-up period of 1 year after intratympanic gentamicin instillations in 12 pa...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489850154595
更新日期:1998-07-01 00:00:00
abstract:INTRODUCTION:Bilateral cochlear implants are seen to improve hearing capabilities. OBJECTIVE:To assess the auditory outcome of paediatric bilateral cochlear implant in Universiti Kebangsaan Malaysia. MATERIALS AND METHODS:This was a cross-sectional and descriptive study single centre analysis. Categories of Auditory ...
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doi:10.1080/00016489.2020.1775887
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVE:To investigate the relationship between hearing loss and vestibular dysfunction in patients with sudden sensorineural hearing loss (SSHL). METHODS:Clinical data including the symptom of vertigo of 149 SSHL patients were investigated retrospectively. Pure tone audiometry, ocular vestibular-evoked myogenic pot...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2015.1110750
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abstract:CONCLUSION:The narrowing pattern of the upper airway in obstructive sleep apnea patients may be different in sleep as compared with awake. Three different types of obstruction were observed in these subjects during drug-induced sleep. The different obstruction pattern during drug-induced sleep suggests that different s...
journal_title:Acta oto-laryngologica
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doi:10.3109/00016480902780242
更新日期:2009-12-01 00:00:00
abstract:CONCLUSIONS:We conclude that: (1) among several cues examined, the monaural cue of direct-to-reverberant (D/R) ratio in the ipsilateral ear provides the most information about sound-source distance; (2) interaural level difference (ILD) provides less information about sound-source distance; and (3) a comprehensive theo...
journal_title:Acta oto-laryngologica
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doi:10.1080/00016480701840114
更新日期:2008-04-01 00:00:00
abstract::This is a study of the effects of repeated angular acceleration on the activity of vestibular nuclei units in anesthetized and in conscious cats. The experimental animals were subjected to trains of repeated and consecutive constant acceleration-deceleration ramps (4-8 degrees/sec2). In a few cases nystagmus was recor...
journal_title:Acta oto-laryngologica
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doi:10.3109/00016488009131713
更新日期:1980-09-01 00:00:00
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journal_title:Acta oto-laryngologica
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doi:10.3109/00016489.2014.938361
更新日期:2014-11-01 00:00:00
abstract::An experimental model of sinusitis in the rabbit was developed, using type 3 pneumococci. The superior parts of the rabbit maxillary sinuses were surgically exposed and the maxillary ostium was unilaterally blocked. The following day a challenge dose of 10(7)-10(9) colony-forming units of Streptococcus pneumoniae, cap...
journal_title:Acta oto-laryngologica
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doi:
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489409126055
更新日期:1994-05-01 00:00:00
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487509121308
更新日期:1975-07-01 00:00:00
abstract::Upper airway symptoms are common, but there is little information available on clinical findings in relation to indoor air pollution. This pilot study was conducted to test whether increased levels of indoor air pollutants in schools may correlate to a swelling of the nasal mucosa. The assumption was made that the deg...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489709113467
更新日期:1997-09-01 00:00:00
abstract:OBJECTIVE:To investigate the outcome of surgically managed laryngeal carcinoma patients attending an outpatient clinic over a 5-year period. MATERIAL AND METHODS:This was an analytical, retrospective, cross-sectional study. A total of 36 laryngeal carcinoma patients who were managed surgically with or without radiothe...
journal_title:Acta oto-laryngologica
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doi:10.1080/00016480410018070
更新日期:2004-08-01 00:00:00
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doi:10.3109/00016489709113477
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journal_title:Acta oto-laryngologica
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更新日期:2011-12-01 00:00:00
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doi:10.1080/00016480510012309
更新日期:2005-12-01 00:00:00
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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:10.3109/00016489709113457
更新日期:1997-09-01 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
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journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480260000120
更新日期:2002-06-01 00:00:00
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journal_title:Acta oto-laryngologica
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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:10.3109/00016489609137712
更新日期:1996-01-01 00:00:00
abstract::Two speech processing schemes have been implemented on a real-time laboratory speech processor for speech perception studies on normal-hearing subjects. The first scheme presents the information of two spectral components, the first and second formant of the speech signal, and will be referred to as the ZC (zero-cross...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.1990.12088420
更新日期:1990-01-01 00:00:00
abstract::Although the association between gastroesophageal reflux disease (GERD) and laryngeal disorders in adults is well established there is still a lack of information concerning the true extent of the laryngeal complications of GERD in children. The aim of this study was to determine the laryngeal status of children with ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/000164802753648213
更新日期:2002-04-01 00:00:00