Analysis of Eye Movements during Passive Head Movements
نویسندگان
چکیده
منابع مشابه
Anticipatory eye movements stabilize gaze during self-generated head movements.
Visual acuity and motion perception are degraded during head movements unless the eyes counter-rotate so as to stabilize the line of sight and the retinal image. The vestibulo-ocular reflex (VOR) is assumed to produce this ocular counter-rotation. Consistent with this assumption, oscillopsia is a common complaint of patients with bilateral vestibular weakness. Shanidze et al. recently described...
متن کاملVestibuloocular reflex signal modulation during voluntary and passive head movements.
The vestibuloocular reflex (VOR) effectively stabilizes the visual world on the retina over the wide range of head movements generated during daily activities by producing an eye movement of equal and opposite amplitude to the motion of the head. Although an intact VOR is essential for stabilizing gaze during walking and running, it can be counterproductive during certain voluntary behaviors. F...
متن کاملCoordination of eye and head movements during reading.
PURPOSE There is little information regarding the characteristics of head movements during reading. This study was undertaken to investigate horizontal and vertical head movements during two different reading tasks. METHODS Head and eye movements were monitored with an infrared pupil and head tracker in 15 subjects during repeated reading of text from an A4-sized card and a card 90 degrees wi...
متن کاملThe perception of motion smear during eye and head movements
Because the visual system integrates information across time, an image that moves on the retina would be expected to be perceived as smeared. In this article, we summarize the previous evidence that human observers perceive a smaller extent of smear when retinal image motion results from an eye or head movement, compared to when a physically moving target generates comparable image motion while...
متن کاملCovert Anti-Compensatory Quick Eye Movements during Head Impulses
BACKGROUND Catch-up saccades during passive head movements, which compensate for a deficient vestibulo-ocular reflex (VOR), are a well-known phenomenon. These quick eye movements are directed toward the target in the opposite direction of the head movement. Recently, quick eye movements in the direction of the head movement (covert anti-compensatory quick eye movements, CAQEM) were observed in ...
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ژورنال
عنوان ژورنال: Practica oto-rhino-laryngologica. Suppl.
سال: 1989
ISSN: 0912-1870
DOI: 10.5631/jibirinsuppl1986.1989.supplement36_63