T - 2 TECHNICAL EVALUATION Incidence of Spatial Disorientation
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Retrieving enduring spatial representations after disorientation.
Four experiments tested whether there are enduring spatial representations of objects' locations in memory. Previous studies have shown that under certain conditions the internal consistency of pointing to objects using memory is disrupted by disorientation. This disorientation effect has been attributed to an absence of or to imprecise enduring spatial representations of objects' locations. Ex...
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A 72-year-old man with pure topographical disorientation following a focal hemorrhage in the right forceps major of splenium was assessed at 2 weeks and 3 months after the onset. Initially, he could identify familiar buildings and landmarks, but noted topographical disorientation, dysfunction in sense of quarters, and in visuo-spatial function. The improvement of topographical disorientation wa...
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Disorientation is common for endoscopists performing colonoscopy. The objectives of this study were to examine how endoscopists acquire and maintain spatial awareness or situation awareness (SA), and how SA varies as a function of available perceptual cues, and as a function of the different segments of the colon. Retrospective analysis of verbal protocols from 11 colonoscopy procedures was con...
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Spatial disorientation (SD) in flight wastes hundreds of millions of dollars worth of defense capability annually and continues to kill air-crew. SD results primarily from inadequacies of human visual and vestibular sensory systems in the flying environment; but other factors, such as task saturation and distraction, precipitate it. The United States Air Force is conducting a three-pronged rese...
متن کاملUse of self-to-object and object-to-object spatial relations in locomotion.
In 8 experiments, the authors examined the use of representations of self-to-object or object-to-object spatial relations during locomotion. Participants learned geometrically regular or irregular layouts of objects while standing at the edge or in the middle and then pointed to objects while blindfolded in 3 conditions: before turning (baseline), after rotating 240 degrees (updating), and afte...
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تاریخ انتشار 2002