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Unconstrained Walking Plane to Virtual Environment for Non-Visual Spatial Learning
Abstract
We have integrated the treadmill-style locomotion interface, called the unconstrained walking plane (UWP), with virtual environment (VE) to enhance spatial learning. This setting allows for a new type of experience, whereby participants with visual disability can explore VE for unattended non-visual spatial learning (NSL) and to develop cognitive maps of it. Although audio and haptic interface has been studied for NSL, nothing is known about the use of locomotion interface for supporting NSL. The structure and control mechanism of the device are presented. Discussion of advantages and limitations of the interface are given. Different types of locomotion interface to virtual environment with their constraints and benefits are discussed briefly. The purpose of the current study is to evaluate the efficacy of the UWP for VE exploration which leads to enhancement of unattended spatial learning and thereby enhancing the mobility skills of visually impaired people (VIP). We report an experiment that investigates the efficacy of UWP for VE exploration during turning and straight walking mode.
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