Feasibility of Mapping Engagement Ratios to Levels of Task Complexity within VR Environments

This paper studied the feasibility of mapping an engagement ratio onto a level of task complexity, when human participants undertook interactive tasks within a virtual reality (VR) environment. Each human participant used a haptic device to push a ball-shaped object through a pipe. There were a total of three pipes, which had three different shapes corresponding to the levels of task complexity mathematically. An electroencephalogram (EEG) device recorded the brain activity of the participant while undertaking the task. The outcomes of the study confirmed the feasibility of mapping the engagement ratio with the levels of task complexity.