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Stereoscopic visual stimuli for examining biological motion perception and unanticipated steering manoeuvres in people with Parkinson's disease

机译:立体视觉刺激检查生物运动感知和帕金森病的人们中的意外转向演习

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Community falls in people with Parkinson's disease (PwPD) are common, costly, and often unanticipated. Aside from static obstacles, it has been reported that oncoming people in community settings pose problems for PwPD when navigating. This suggests that PwPD may have difficulty (i) perceiving biological motion and action possibilities, and (ii) steering out of the way of oncoming persons. To date, laboratory research that investigated unanticipated steering manoeuvres in PwPD have only incorporated light- or arrow-based visual stimuli to simulate the spatiotemporal demands of these movements. However, such simple stimuli are not ecologically valid for examining biological motion perception and unanticipated steering manoeuvres used in avoiding oncoming people. To improve the generalisability of laboratory research in this field, a set of stereoscopic visual stimuli that feature an oncoming person initiating a sudden change in direction was developed for PwPD to engage with. Specifically, we modified and improved existing cinematographic techniques, software, and stereoscopic display technology to bring about:?Ambulatory scenarios that were quasi-immersed with the laboratory environment.?Enhanced realism.?Better temporal consistency in video playback.
机译:社区陷入帕金森病(PWPD)的人常见,昂贵,经常意外。除了静态障碍之外,据报道,在导航时,迎面而来的人在社区环境中为PWPD构成问题。这表明PWPD可能难以(i)感知生物运动和行动可能性,以及(ii)从迎面而言的方式转向。迄今为止,调查PWPD中的意外转向机动的实验室研究才纳入了基于光或箭头的视觉刺激,以模拟这些运动的时空需求。然而,这种简单的刺激对于检查生物运动感知和意想不到的转向运动来避免迎面而来的人来说,这种简单的刺激性并不生态有效。为了提高该领域的实验室研究的可持续性,为PWPD开发了一系列具有启动方向突然改变的迎面的人的立体视觉刺激。具体而言,我们修改和改进了现有的电影技术,软件和立体显示技术,带来了:?沉浸在实验室环境中的气象情景.?展开现实主义。视频播放中的时间一致性。

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    《MethodsX》 |2021年第a期|共9页
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    Stacy W.L. Foo;

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