Jeong Yoon Choi
Seoul National University · Medicine
About the Lab
Professor Jeong Yoon Choi's research lab specializes in clinical and translational neuroscience, with a primary focus on central vestibular disorders, particularly central positional nystagmus and its differentiation from peripheral causes like benign paroxysmal positional vertigo. The lab investigates the neuro-ophthalmological and neuro-otological mechanisms underlying nystagmus patterns, vestibular reflex function (e.g., head impulse test), and the role of cerebellar and brainstem pathology in vertigo syndromes. Additionally, the lab explores biomarkers such as free fatty acids (FFA) in cardioembolic stroke, aiming to improve risk prediction and outcomes in cerebrovascular disease. Their work bridges clinical neurology, vestibular physiology, and stroke neurology through rigorous observational and registry-based studies.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15CPPN may be ascribed to enhanced responses of the vestibular afferents due to lesions involving the nodulus and uvula. CPPN could be differentiated from benign paroxysmal positional nystagmus by positional nystagmus induced in multiple planes, temporal patterns of nystagmus intensity, and associated neurologic findings suggestive of central pathologies.
Here we characterize persistent apogeotropic type of central positional nystagmus, and compare it with the apogeotropic nystagmus of benign paroxysmal positional vertigo involving the lateral canal. Nystagmus was recorded in 27 patients with apogeotropic type of central positional nystagmus (22 with unilateral and five with diffuse cerebellar lesions) and 20 patients with apogeotropic nystagmus of benign paroxysmal positional vertigo. They were tested while sitting, while supine with the head st
The head impulse test (HIT) is used to evaluate the vestibulo-ocular reflex (VOR) during a high-velocity head rotation. Corrective catch-up saccades that occur during or after the HITs usually indicate peripheral vestibular hypofunction, whereas in acute vestibular syndrome, normal clinical (bedside) HITs should prompt a search for a central lesion. However, recent quantitative studies that evaluated HITs using magnetic search coils or video-based techniques have demonstrated that specific patte
In this retrospective registry-based observational study, CE stroke seemed to be associated with elevated plasma level of FFA. In addition, the present study suggested that an elevated FFA concentration could be a useful indicator for predicting recurrent stroke in CE stroke patients.
Central vertigo is a heterogeneous group of disorders with diverse clinical spectrums. An integrated approach based on understanding of clinical features, laboratory findings, speculated mechanisms, and limitations of current diagnostic tests will lead to better clinical practice.
Statin therapy could be associated with reduced mortality in patients with cardioembolic stroke.
This study suggests that LVWMA, even when unassociated with high-risk cardioembolic sources, could be an independent predictor for stroke recurrence in patients with ischemic stroke.
FFA may be a potential biomarker that predicts outcome events in stroke with A-fib along with the CHADS2 and CHA2 DS2 -VASc scoring systems.
With the developments of clinical and laboratory neurotology, the spectrum of central vestibular disorders has expanded markedly over the years.
Headache semiology of uncomplicated ICVAD is mostly homogenous in the present study. These characteristics may be helpful in the diagnosis of uncomplicated ICVAD.
Research Areas
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