Effects of virtual reality display types on the brain computer interface system

Abstract

This paper presents the study of evaluating VR display types on Brain Computer Interface (BCI) performance. In this study, a configurable virtual reality BCI system was used for users to control the virtual environment to execute the ubiquitous computing home facilities. The study evaluated various VR display types: 2D arrow cue, 3D virtual reality, 3D fully immersive CAVE system, and 3D CAVE cue. The task involved users to imagine left or right arm movements for rotating the direction in the virtual environment and move forward by using a direction locking device. The result shows that there was no significant improvement on BCI classification rate even by enhancing the immersion of VR displays. Instead, the level of simulator sickness was increased. This result indicates a new improved display type is needed for the ubiquitous computing environment control BCI system. © Springer-Verlag Berlin Heidelberg 2007.