Back to Journals » Psychology Research and Behavior Management » Volume 2

Creation of virtual reality stimulus for a psychophysiological body balance measurement

Authors Alatalo T, Juhola M, Surakka V, Tossavainen T

Published 23 November 2008 Volume 2009:2 Pages 13—22

DOI https://doi.org/10.2147/PRBM.S4352

Review by Single-blind

Peer reviewer comments 1


Tero Alatalo1, Martti Juhola1, Veikko Surakka1,2, Timo Tossavainen1

1Department of Computer Sciences, University of Tampere, Tampere, Finland; 2Department of Clinical Neurophysiology, Tampere University Hospital, Tampere, Finland

Abstract: Virtual reality methods and equipment can be used to create stimulations for several psychophysiological measurements. Such stimulations can be flexibly modified and their versatility is wide; in principle even such could be prepared that are not possible in the real physical world like virtual flying in the space. For the generation of virtual reality stimulations we constructed a three-dimensional (3D) graphics engine to measure body balance variations in response to emotional stimulation. The stimulation was implemented as a virtual reality scene, where the subject watched a street view with a human figure approaching the subject at a constant speed. The functioning of the system was tested by measuring body balance variations while the approaching figure’s facial expression was angry, neutral, or happy. The results showed that our young, healthy subjects were slightly, but still statistically significantly affected by the stimulation of the approaching figure. Thus, the whole system offers a tool for controlled experimental studies for analyzing body balance, for example, during stimulating approach-withdrawal behavior. There are several opportunities to further develop new visual psychophysiological stimulations and test forms.

Keywords: virtual reality stimulations, signal analysis, body balance measurements, approachwithdrawal behavior, emotions

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]