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The purpose of this study was to investigate the ability of young and old subjects to reweight visual cues while walking at normal and fast speeds.Ten young (23.49±4.72) and ten older adults (age 76.22±3.11) were asked to physically walk straight while viewing a virtual scene in a head-mounted display (HMD) unit under three conditions: no visual perturbation, blank (no visual input), and visual perturbation...
Persons with a chronic stroke often manifest mobility deficits that may in part be related to altered visuomotor control. Specifically, the ability to use optic flow, which reflects self-motion, may be compromised after a stroke. We evaluated the locomotor behavior of 6 subjects with chronic stroke as they walked overground while viewing a virtual room displayed in a head-mounted display. The subjects...
Optic flow is a typical pattern of visual motion that can be used to control locomotion. While the ability to discriminate translational or rotational optic flows have been extensively studied, how these flows control steering during locomotion is not known. The goal of this study was to compare the steering behaviour of subjects subjected to rotational, translational, or combined (rotational added...
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