Quantitative analysis pursuit eye movement by eye tracking test.
نویسندگان
چکیده
منابع مشابه
Recasting the smooth pursuit eye movement system.
Primates use a combination of smooth pursuit and saccadic eye movements to stabilize the retinal image of selected objects within the high-acuity region near the fovea. Pursuit has traditionally been viewed as a relatively automatic behavior, driven by visual motion signals and mediated by pathways that connect visual areas in the cerebral cortex to motor regions in the cerebellum. However, rec...
متن کاملVermal infarct with pursuit eye movement disorders.
Severe deficits of foveal smooth pursuit and optokinetic nystagmus in all directions were electro-oculographically recorded in an 80 year old woman. Magnetic resonance imaging (MRI) showed an infarct involving the postero-inferior part of the vermis (lobules VI to X) and a portion of the left cerebellar hemisphere, with apparent preservation of the flocculus and the brainstem. The role of the v...
متن کاملPerceiving depth order during pursuit eye movement
Pursuit eye movements alter retinal motion cues to depth. For instance, the sinusoidal retinal velocity profile produced by a translating, corrugated surface resembles a sinusoidal shear during pursuit. One way to recover the correct spatial phase of the corrugation's profile (i.e. which part is near and which part is far) is to combine estimates of shear with extra-retinal estimates of transla...
متن کاملManual tracking enhances smooth pursuit eye movements.
Previous studies have reported that concurrent manual tracking enhances smooth pursuit eye movements only when tracking a self-driven or a predictable moving target. Here, we used a control-theoretic approach to examine whether concurrent manual tracking enhances smooth pursuit of an unpredictable moving target. In the eye-hand tracking condition, participants used their eyes to track a Gaussia...
متن کاملEye-Movement Tracking Using Compressed Video Images
Infrared video cameras offer a simple noninvasive way to measure the position of the h u eyes using relatively inexpensive equipment. Several commercial systems are available whic se special hardware to localize features in the image in real time; typically the pupil and the i first Purkinje image (corneal reflex) are tracked, the difference between these two signals giv ng a measure of eye rot...
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ژورنال
عنوان ژورنال: Practica Oto-Rhino-Laryngologica
سال: 1988
ISSN: 1884-4545,0032-6313
DOI: 10.5631/jibirin.81.975