Tida Blackburn, University of Utah
Psychology
Previous work has shown that our perception of height is influenced by ones eye height. We further investigate this phenomenon by extending this research to virtual reality. Virtual reality can give the appearance of eyeheight change, which cannot be done otherwise. We changed participants’ eye height by adjusting the height at which participants viewed their environment. Effective eye heights were both 0.08 cm lower and higher than the participants’ normal eye height. The virtual reality environment was a classroom with two vertical poles and a horizontal pole that create a horizontal barrier for participants to walk under. In the first experiment, participants were instructed to walk under the barrier as naturally as possible and to duck when needed. The height of the barrier was altered across trials. In the second experiment, we manipulated eye height further using physical objects, namely shoe inserts. The second experiment followed the design of the first experiment. Data was collected using cameras and a tracking program to record the participants’ ducking behavior. The previous study found that manipulating a person’s height influences their judgment of how high the horizontal barrier appears and whether they could pass under it without ducking. We hypothesized that people will change their ducking behavior depending on their eye height, because they are rescaling their body to their new viewpoint.