Association Between Cognitive Function and Spatial–Temporal Measures of Gait and Balance When Navigating a Virtual Reality Floor Maze

IF 5.2 2区 医学 Q2 ENGINEERING, BIOMEDICAL
Jiawei Chen;Dario Martelli;Sunil K. Agrawal
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引用次数: 0

Abstract

Spatial navigation has been used as a behavioral marker of cognitive impairments. Floor Maze Tests (FMT) are used to characterize navigation where subjects physically move through a two-dimensional maze drawn on the floor. A Virtual Reality version of FMT (VR-FMT) has been developed, which provides a 3-dimensional navigation environment where the height of the maze walls can be altered. For both FMT and VR-FMT, the time used to complete the maze has been reported as the outcome measure to characterize the cognitive function. This study aims to show new performance metrics derived from spatial-temporal gait and balance parameters during navigation through the maze and their association with the cognitive scores in subjects with probable dementia. Sixty-five older adults with probable dementia participated in an experiment where subjects walked in VR-FMT with two wall heights, 2 centimeters (no wall condition) and 2 meters (wall condition). Our results showed that in no wall condition, the gait and balance parameters during navigation were associated with cognitive scores measuring attention and executive function. In wall condition, besides attention and executive function, gait parameters showed a correlation with the scores of the auditory memory. This paper showed that the spatial-temporal gait and balance parameters during spatial navigation are important metrics of cognitive function in addition to the completion time. VR-FMT with walls can help identify early memory impairments in individuals.
在虚拟现实地板迷宫中行走时,认知功能与步态和平衡的时空测量之间的关系。
空间导航已被用作认知障碍的行为标记。地板迷宫测试(FMT)用于描述导航,受试者在地板上绘制的二维迷宫中移动。一种虚拟现实版本的FMT (VR-FMT)已经被开发出来,它提供了一个三维的导航环境,其中迷宫墙壁的高度可以改变。对于FMT和VR-FMT,完成迷宫的时间已被报道为表征认知功能的结果测量。本研究旨在揭示时空步态和平衡参数在迷宫中导航过程中的新表现指标及其与可能患有痴呆症的受试者认知评分的关系。65名可能患有痴呆症的老年人参加了一项实验,受试者在两种墙高的VR-FMT中行走,2厘米(无墙情况)和2米(有墙情况)。我们的研究结果表明,在没有墙壁的情况下,导航时的步态和平衡参数与测量注意力和执行功能的认知得分有关。在墙壁条件下,除了注意力和执行功能外,步态参数与听觉记忆得分也有相关性。研究表明,空间导航过程中的时空步态和平衡参数除了完成时间外,也是认知功能的重要指标。带壁的VR-FMT可以帮助识别个体的早期记忆障碍。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
8.60
自引率
8.20%
发文量
479
审稿时长
6-12 weeks
期刊介绍: Rehabilitative and neural aspects of biomedical engineering, including functional electrical stimulation, acoustic dynamics, human performance measurement and analysis, nerve stimulation, electromyography, motor control and stimulation; and hardware and software applications for rehabilitation engineering and assistive devices.
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