Communications of the ACM - Internet abuse in the workplace and Game engines in scientific research
Case study on real-time visualization of virtual tübingen on commodity PC hardware
Proceedings of the conference on Visualization '01
A SWOT analysis of the field of virtual reality rehabilitation and therapy
Presence: Teleoperators and Virtual Environments - Special issue: Virtual rehabilitation
Binaural acoustics for CAVE-like environments without headphones
EGVE'05 Proceedings of the 11th Eurographics conference on Virtual Environments
Combining virtual reality and functional magnetic resonance imaging (fMRI): problems and solutions
USAB'07 Proceedings of the 3rd Human-computer interaction and usability engineering of the Austrian computer society conference on HCI and usability for medicine and health care
Presence: Teleoperators and Virtual Environments
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Virtual Reality (VR) has become a useful tool in psychological therapy, rehabilitation, and basic research. It provides the therapist or scientist with high ecological validity and complete control over multimodal stimuli and the virtual environment. To build lifelike virtual environments, commercial software or game engines are often used. On the other hand, many psychological experiments require an accurate timing of presented stimuli and user reactions, which is not easily obtained by modern hard- and software systems. In this work, we present a VR software for psychological experiments which combines modern computer graphics and Virtual Reality techniques with accurate stimulus and event control. We describe the system features and possibilities for VRbased experiment generation and propose approaches for precise stimulus and event timing. These approaches are evaluated for achievable accuracy in stimulus control and performance monitoring within typical virtual environments.