• 한국감성과학회:학술대회논문집
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• 한국감성과학회 1997년도 한국감성과학회 연차학술대회논문집
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• pp.157-162
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• 1997

The purpose of this study was to develop a sinusoidal rotatory chair systim for evaluating the vestibular function in patients suffered from vertigo with vestibualr disorders. The sinusoidal rotatory chair system is composed of a rotatory chair systim and softwares. Maximum velocity of the rotatiry chair was upto 60 degree per second and frequency range was 0.01 to 0.64 Hz. To evaluate the vestibular function in vertigo patients, vestibuloocular reflex was measured by sinusoidal rotation of the whole body about vertical axis in the darkness, and optokinetic nystagmus, visual vestibuloocular reflex , and visual supression test were also performed. Eye movement was measured by means of a electronystgmograph amplifier through Ag-AgCI surface electrodes. Gain, phase, and symmetry were obtained from analysis of the eye movement ineuced by vestibular or visual stimulation. In healthy adults, sinusoidal rotation of the shole body produced nystagmus, of which gain was directly proportional to the velocity of stimulation. The gain of visual vestibuloocular reflex or optokinetic nystagmus, and it was suppressed markedly by visual suppression test. These results suggest that the sinusoieal rotatory chair systim which was developed by this study can evaluate the vestibular function quantitatively, also this system is very useful to diagnose and to dstimate the vestibualr function during recovery from vertigo

• 한국동물학회지
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• 제33권3호
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• pp.247-254
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• 1990

GABA antagonist 를 닭의 열린 눈과 닫힌 눈에 차례로 주입한 후 monocular head와 eye optokinetic nystagmus을 관찰하고 코일 기록에 의해서 연구하였다. 주입전 이 visuomotor reflex를 일으키는데 있어서 닭은 N-T 자극에 대해서 보다 T-N 자극에 대해서 더욱 효과적인 OKN을 나타냈다. 열린눈에 주입한 GABA antagonist는 head와 eye OKN의 감소 또는 소멸을 일으키며, GABA antagonist를 닫힌 눈속에 주입했을 때는 head와 eye OKN은 증가 되었다. 이와 같이 GABA antagonist는 monocular OKN의 N-T 성분을 억제하는데 GABAergic 메카니즘이 관련되고 있다는 것을 지시함으로써 head와 eye OKN의 방향적 불균형성을 제거하였다.

• 한국동물학회지
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• 제33권2호
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• pp.133-140
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• 1990

한 눈의 시각에서 bead와 눈의 optokinetic nystagmus(OKN)은 닭과 같은 하등 척추동물에서 반사 시각운동을 일으키는데 temporal-nasal(T-N)자극이 nasal-temporal(N-T)자극보다 더욱 효과적인 방향적 불균형성을 나타낸다. 닭의 한쪽 눈 봉합에 의한 장기간 한쪽 눈 시각상실은 N-T성분이 점진적으로 많은 증가를 일으킨다는 것을 코일에 의한 기록과 관찰에서 보여주었다. 이 plasticity현상은 닭에서 눈과 head OKN에 관련되고 있다. GABA agonist인 5,6,7-tetrahydroisoxzolo(5,4,C)pyridin-3-10(THIP)주입은 닭에서 NT성분의 증가를 가역적으로 제거하였다. 이 사실은 GABAergic시스템이 성장한 하등 척축동물에서 관찰된 이 plasticity현상을 결정하는데 관련될 수 있다는 것을 시사하고 있다.

• Korean Journal of Otorhinolaryngology-Head and Neck Surgery
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• 제61권11호
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• pp.580-587
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• 2018

Background and Objectives We evaluated the clinical characteristics and vestibular function of patients with direction changing vibration induced nystagmus (DC VIN) and unilateral vestibular hypofunction and suggest clinical implication and a proposed mechanism of DC VIN. Subjects and Method The records of 315 patients who underwent the VIN test were reviewed retrospectively. Among these, 18 patients (5.7%) showed DC VIN, and out of whom, 15 patients (4.8%) were diagnosed as unilateral vestibular hypofunction by caloric, rotation chair (RCT), and video head impulse test (vHIT). We analyzed the relationship between DC VIN and the dizziness characteristics, duration of disease, and the outcome of the vestibular function test. Results The mean age of 15 patients was $67.4{\pm}10.7years$ and the mean duration of dizziness was $13.6{\pm}29.7months$. The caloric test revealed 25% of the patients to have significant canal paresis [Caloric vestibular neuritis (VN)], while 75% showed normal caloric response. However, unilateral vestibular hypofunction was observed by abnormal results in RCT or vHIT (Non-caloric VN). Seven patients showed ipsilateral DC VIN (nystagmus to vibrated side) and eight patients contralateral DC VIN (nystagmus to opposite side of vibration). Patients with ipsilateral DC VIN were shown to have a significant longer duration of dizziness than those with contralateral DC VIN. Conclusion Although rare, DC VIN can also be found in patients with unilateral vestibular hypofunction. Patients with DC VIN had a mild vestibular asymmetry with Non-caloric VN or Caloric VN in the process of compensation. The mechanism of ipsilateral DC VIN seems to be due to the small amount of vestibular asymmetry, which is smaller than the interaural attenuation of vibration.

• Annals of Clinical Neurophysiology
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• 제13권1호
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• pp.13-20
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• 2011

Neuro-ophthalmological findings are common and occasionally prominent features in movement disorders. Accordingly, careful evaluation of the ocular motor functions may provide valuable information in early detection of the diseases and monitoring of the progression. Furthermore, accurate assessment of the abnormal ocular motor findings aids in understanding the pathophysiology and mechanisms of the movement disorders, and in their differential diagnosis. Ocular motility examination should include bedside evaluation and laboratory recording of the fixational abnormalities, saccades, smooth pursuit, the vestibulo-ocular reflex, optokinetic nystagmus, and vergence eye movements. In this review, we will discuss various ocular motor findings in ataxia and parkinsonian syndromes, and hyperkinetic movement disorders.

• The Korean Journal of Pain
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• 제18권2호
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• pp.232-234
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• 2005

Stellate ganglion block (SGB) is one of the most widely used treatment modalities for a broad range of disorders, including otolaryngologic indications such as Meniere's disease and sudden hearing loss. We present a case of a vertiginous attack following SGB for the management of Meniere's disease. A 31-year-old female, suffering from Meniere's disease, underwent repeated right side SGBs with 6 ml of 1% mepivacaine after negative aspiration tests for blood. The eleventh block was performed in the usual manner. Several seconds after injection, she showed agitation, anxiety, nystagmus, and left-sided tinnitus. Two minutes later, her tinnitus and nystagmus were resolved. Fifteen minutes after injection, she experienced acute onset of severe vertigo, nausea, and vomiting. However, her symptoms were gradually alleviated within two hours.

• 한방안이비인후피부과학회지
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• 제17권2호
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• pp.106-111
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• 2004

Vertigo is a symptom, not a disease. The tenn vertigo refers to the sensation of spinning or whirling that occurs as a result of a disturbance in balance. It's sometimes referred to as a hallucination of motion. The cause of vertigo is very various and generally divided into peripheral and central. A patient presented with severe vertigo, nystagmus and heteophoria. She has taken the BanHaBaekChulChunMa-tang and treated by acupuncture. After 2 days, her symptoms become disappeared and about 1 week, all symptoms except heterophoria were disapperaed. And after 2 weeks, heterophoria was disappeared. In conclusion, we diagnosed her case as vestbular neuronitis by her clinical course, but we also considered her illness as vertebrobasilar insufficiency, TIA etc.

• Journal of Yeungnam Medical Science
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• 제36권3호
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• pp.269-272
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• 2019

There have been several reports of patients with isolated lesions of the cerebellar vermis presenting with clinical features similar to those of peripheral vestibulopathy. We report a case of small, isolated hematoma in the cerebellar vermis in a patient who presented with vertigo, ipsilesional nystagmus, and body lateropulsion to the contralesional side without the usual signs or symptoms of cerebellar dysfunction. Although they present with symptoms that mimic those of peripheral vestibulopathy, and brain computed tomography shows no abnormality, as there may be a small, isolated hematoma or infarction in the cerebellar vermis. Thus, brain magnetic resonance imaging should be performed in elderly patients with vascular risk factors.

• 사상체질의학회지
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• 제34권4호
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• pp.89-102
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• 2022

Objectives This study was aimed to report significant improvement of vestibular neuronitis treated with Cheongsimyeonja-tang. Methods The patient was treated with Sasang herbal medicine for vestibular neuronitis. Also acupuncture and pharmacopuncture were used to treat neck and shoulder pain. Numeral rating scale(NRS), Romberg test, Spontaneous nystagmus, Induced nystagmus and Head thrust test were used to observe changes of dizziness in vestibular neuronitis. Results and Conclusions After 41days of treatment, the patient showed improvement in NRS. Also, the patient's symptoms of nausea, dyspepsia, sleep disturbance were improved. This study shows that Cheongsimyeonja-tang might be effective in Taeumin patient's vestibular neuronitis.

• Annals of Clinical Neurophysiology
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• 제25권2호
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• pp.55-65
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• 2023

The ultimate role of ocular movements is to keep the image of an object within the fovea and thereby prevent image slippage on the retina. Accurate evaluations of eye movements provide very useful information for understanding the functions of the oculomotor system and determining abnormalities therein. Such evaluations also play an important role in enabling accurate diagnoses by identifying the location of lesions and discriminating from other diseases. There are various types of ocular movements, and this article focuses on saccades, fast eye movements, smooth pursuit, and slow eye movements, which are the most important types of eye movements used in evaluations performed in clinical practice.