Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Dynamic Visual Acuity"”.
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Text orienting cues: Enhancing dynamic visual acuity for targets of unknown origin
Dynamic Visual Acuity (DVA) refers to an observer's ability to resolve a critical detail in a visual target under conditions of relative motion between an observer and a target. DVA research has conventionally used visual targets originating from a single fixation point and moving in a predictable …
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The effects of random linear target direction in a computerized Dynamic Visual Acuity task
Research on Dynamic Visual Acuity (DVA) to date has conventionally used visual targets originating from a single fixation point and moving in a single, predictable linear direction. These procedures (presumably dictated by apparatus constraints) ensured the observer knew when and from where the …
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Peripheral Dynamic Visual Acuity Under Randomized Tracking Task Difficulty, Target Velocities, and Direction of Target Presentation
Dynamic Visual Acuity (DVA) in the visual periphery has not been extensively studied. DVA is a measure of an observer's ability to resolve critical details in a target when there is relative motion between the target and the observer. This dissertation examined static and dynamic acuity in the …
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The relationship between motor proficiency, bilateral vestibular hypofunction and dynamic visual acuity in children with congenital or early acquired sensorineural hearing loss
… of motor performance, vestibular function and dynamic visual acuity, and the nature and extent of interaction between these in children between the ages of four and fourteen years with congenital and early acquired sensorineural hearing loss. Motor performance was evaluated by means of the …
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The Influence of Vestibular-Ocular Reflex Training on Static and Dynamic Postural Stability in Subjects with Chronic Ankle Instability
… protocols to improve postural stability, dynamic visual acuity and gaze stabilization among chronic ankle instability (CAI) patients. Design: Randomized controlled trial. Setting: Research laboratory setting. Participants: 16 physically-active women and men (age, 22.2+1.5 yrs; hgt, …
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Dynamic contrast sensitivity: methods and measurements
… The results are consistent with previous Dynamic Visual Acuity (DVA) research which has shown that the ability to resolve fine detail decreases as target velocities increase, presumedly due to limitations in eye movement control. The testing device, which was designed and constructed for …
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Effects of Neck Muscle Fatigue on the Vestibulo-Ocular Reflex
… from multiple sensory systems including the visual, vestibular, and somatosensory systems. The information from these systems is sent to the brain where the information is then combined, organized and interpreted. This results in the output of reflexes (vestibulo-ocular reflex [VOR] and …
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Visual Search Strategies of Elite Baseball Players During a Baseball Hitting Task
… to the quick duration of an at-bat, anticipatory visual cues and predictive eye movements are needed to have an accurate final fixation while initiating bat swing. Previous research has demonstrated expert hitters have superior dynamic visual acuity and superior visual search strategies. However, …
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The role of load-regulating mechanisms In gaze stabilization during locomotion
… controlling the generation of stepping patterns, dynamic balance, and termination of locomotion. Increased body weight support (BWS) during locomotion results in an immediate reorganization of locomotor control, such as a reduction in stance and double support duration and decreased hip, ankle, …
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The Effects Of Stimulus Motion On Contrast Sensitivity: Dynamic Sensi
Static Visual Acuity (SVA) has been called into question for some time as a measure of overall visual system function and as a predictor of performance on real-life tasks requiring vision (i.e., operating an automobile). Specifically, it has been pointed out that the targets employed in most SVA …