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Calibration of locomotion resulting from visual motion in a treadmill-based virtual environment

Published: 01 January 2007 Publication History

Abstract

This paper describes the use of a treadmill-based virtual environment (VE) to investigate the influence of visual motion on locomotion. First, we establish that a computer-controlled treadmill coupled with a wide field of view computer graphics display can be used to study interactions between perception and action. Previous work has demonstrated that humans recalibrate their visually directed actions to changing circumstances in their environment. Using a treadmill VE, we show that recalibration of action is reflected in the real world as a result of manipulating the relation between the visual indication of speed, presented using computer graphics, and the biomechanical speed of walking on a treadmill. We then extend this methodology to investigate whether the recalibration is based on perception of the speed of movement through the world or on the magnitude of optic flow itself. This was done by utilizing two different visual displays, which had essentially the same magnitude of optic flow, but which differed in the information present for the speed of forward motion. These results indicate that changes in optic flow are not necessary for recalibration to occur. The recalibration effect is dependent, at least in part, on visual perception of the speed of self-movement.

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    Published In

    cover image ACM Transactions on Applied Perception
    ACM Transactions on Applied Perception  Volume 4, Issue 1
    January 2007
    129 pages
    ISSN:1544-3558
    EISSN:1544-3965
    DOI:10.1145/1227134
    Issue’s Table of Contents
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 01 January 2007
    Published in TAP Volume 4, Issue 1

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    Author Tags

    1. Treadmill virtual environments
    2. locomotion
    3. visual self-motion

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    • (2024)Prolonged exposure to mixed reality alters task performance in the unmediated environmentScientific Reports10.1038/s41598-024-69116-w14:1Online publication date: 15-Aug-2024
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