Random Dot Kinematogram used in Virtual Reality: A preliminary experiment

Abstract: For professional use of virtual reality (VR), it is important to understand, how decisions made in VR differ from decisions made in reality. For example, if decision makers of automaker corporations experience virtual vehicle prototypes in VR, would they make the same decisions on product features in VR as they would in reality? Or, if students use VR to learn and carry out exams, would they decide for the same actions and exam answers as in reality? Two-choice tasks in a physical environment using the random dot kinematogram have already been realised. In our study, we therefore aimed at replication of this experiment in virtual reality. Challenges arose in the selection of the VR devices. Hence, here we report on the pre-experiment to identify a suitable VR setup.The biggest problem with this experiment was that lines were seen instead of dots. For this reason, different headsets with different refresh rates were tested to avoid this.The test subjects were students and tested the settings in randomized order and then indicated what they had seen in randomized answers. The data was collected in the form of an online questionnaire. A total of 17 people took part in the test. There is no clearly satisfactory result. However, most of the “very good” and “good” results were achieved with 80 Hz of the Valve Index.

Keywords: Study, Virtual Reality, Random Dot kinematogram, Head Mounted Display

DOI: 10.54941/ahfe1004989

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