Human Interaction Data Acquisition Software for Virtual Reality

Rebelo

Teles

et al. 2012

Work

Self Cite

Warnings are intended to reduce accidents caused by hazards. Behavioral compliance is the most important measure of warning effectiveness. However, in result of diverse circumstances (e.g., distraction, misuse, negligence), conflicting or ambiguous safety messages can be perceived. Since these are recurrent and can result in wrong behaviors encompassing severe consequences, such cases should be studied for safety purposes. We report findings on the participants' compliant behavior when performing a work-related task, while immersed in a virtual environment, and investigate the effect of conflicting messages on compliance with warnings. Two warnings (one regular and one with an appended out-of-order sign) and two types of signs (static and dynamic) were considered. The warning with the out-of-order sign configures the case of potentially conflicting messages. The gender effect was also investigated. The participants' behavior was assessed regarding to pushing a button as directed by the warnings. In the "out-of-order" warning, compliance was higher in the dynamic situation (53.3%) than in the static one (3.3%). Comparing with the non-conflicting warning, compliance was higher for both situations (static: 76.7%; dynamic: 100%). Women complied more than men. Although these results have limitations in their generalization, they are nonetheless relevant and deserve to be studied further.

Section: Virtual Environment and Scenariomentioning

confidence: 99%

What should I do? – A study about conflicting and ambiguous warning messages

Rebelo

Teles

et al. 2012

Work

Self Cite

“…The VE was modeled in Autodesk 3dsMax v2009 and exported through the plugin OgreMax v1.6.23 to be presented by the ErgoVR system [11]. The only difference between the conditions was the navigation interface used, that is, the Nintendo® Wii Balance Board and a Thrustmaster® USB Joystick.…”

Section: Virtual Environmentmentioning

confidence: 99%

Comparing two types of navigational interfaces for Virtual Reality

Teixeira

Vilar

et al. 2012

Work

Self Cite

Previous studies suggest significant differences between navigating virtual environments in a lifelike walking manner (i.e., using treadmills or walk-in-place techniques) and virtual navigation (i.e., flying while really standing). The latter option, which usually involves hand-centric devices (e.g., joysticks), is the most common in Virtual Reality-based studies, mostly due to low costs, less space and technology demands. However, recently, new interaction devices, originally conceived for videogames have become available offering interesting potentialities for research. This study aimed to explore the potentialities of the Nintendo Wii Balance Board as a navigation interface in a Virtual Environment presented in an immersive Virtual Reality system. Comparing participants' performance while engaged in a simulated emergency egress allows determining the adequacy of such alternative navigation interface on the basis of empirical results. Forty university students participated in this study. Results show that participants were more efficient when performing navigation tasks using the Joystick than with the Balance Board. However there were no significantly differences in the behavioral compliance with exit signs. Therefore, this study suggests that, at least for tasks similar to the studied, the Balance Board have good potentiality to be used as a navigation interface for Virtual Reality systems.

“…The base structure of the VE was initially designed using AutoCAD® 2009, and then modified by 3ds Max® 2009 (both from Autodesk, Inc.). The VE was then exported using OgreMax v1.6.23 into the ErgoVR system (Teixeira, Rebelo, & Filgueiras, 2010).…”

Section: Apparatusmentioning

confidence: 99%

A Personalized Speech Warning Facilitates Compliance in an Immersive Virtual Environment

Proceedings of the Human Factors and Ergonomics Society Annual

Rebelo

Teles

et al. 2012

Self Cite

The effect of a personalized technology-based warning on compliance was assessed using an immersive virtual environment (IVE). Sixty university students performed an end-of-day routine security check in the IVE. Participants were asked to search for and activate safety-related devices, which involved entering several rooms. Just prior to abandoning the first room, participants were incidentally exposed to a posted warning (mandatory to disconnect the music generator) consisting of either a personal warning (i.e., a speech message with the participant’s first name) or an impersonal warning (i.e., a auditory beep signal). Compliance was determined by observing whether or not the participants pressed the button-switch as directed by the warning. Results reveal that compliance rate was significantly greater when the warning was personalized. No significant gender differences were found. Implications of these results are discussed in terms of the benefits of effective warnings.