沉浸式虚拟现实中的姿势不稳定会随着重复而适应,并包括方向和性别特异性效应。

Postural instability in an immersive Virtual Reality adapts with repetition and includes directional and gender specific effects.

机构信息

Department of Clinical Sciences, Lund University, Lund, Sweden.

Division of Brain Sciences, Imperial College London, London, United Kingdom.

出版信息

Sci Rep. 2019 Feb 28;9(1):3168. doi: 10.1038/s41598-019-39104-6.

Abstract

The ability to handle sensory conflicts and use the most appropriate sensory information is vital for successful recovery of human postural control after injury. The objective was to determine if virtual reality (VR) could provide a vehicle for sensory training, and determine the temporal and spatial nature of such adaptive changes. Twenty healthy subjects participated in the study (10 females). The subjects watched a 90-second VR simulation of railroad (rollercoaster) motion in mountainous terrain during five repeated simulations, while standing on a force platform that recorded their stability. The immediate response to watching the VR movie was an increased level of postural instability. Repeatedly watching the same VR movie significantly reduced both the anteroposterior (62%, p < 0.001) and lateral (47%, p = 0.001) energy used. However, females adapted more slowly to the VR stimuli as reflected by higher use of total (p = 0.007), low frequency (p = 0.027) and high frequency (p = 0.026) energy. Healthy subjects can significantly adapt to a multidirectional, provocative, visual environment after 4-5 repeated sessions of VR. Consequently, VR technology might be an effective tool for rehabilitation involving visual desensitisation. However, some females may require more training sessions to achieve effects with VR.

摘要

处理感觉冲突并使用最合适的感觉信息的能力对于人类受伤后姿势控制的成功恢复至关重要。目的是确定虚拟现实 (VR) 是否可以提供感觉训练的工具,并确定这种适应性变化的时间和空间性质。二十名健康受试者参加了这项研究(10 名女性)。受试者在五个重复模拟中观看了 90 秒的山地铁路(过山车)运动的 VR 模拟,同时站在记录其稳定性的力台上。观看 VR 电影的即时反应是姿势不稳定程度增加。反复观看相同的 VR 电影可显著降低前后向(62%,p<0.001)和侧向(47%,p=0.001)能量的使用。然而,女性对 VR 刺激的适应速度较慢,表现为总能量(p=0.007)、低频(p=0.027)和高频(p=0.026)的使用较高。健康受试者在 4-5 次重复 VR 训练后可显著适应多方向、刺激性的视觉环境。因此,VR 技术可能是涉及视觉脱敏的康复的有效工具。然而,一些女性可能需要更多的训练课程才能达到 VR 的效果。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff94/6395702/f488f12ba845/41598_2019_39104_Fig1_HTML.jpg

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