Dynamic action in virtual environments: Constraintson the accessibility of action knowledge in children and adults

摘要

In a series of three experiments, we probed the accessibility of action knowledge in different versionsof a virtual environment (VE) with 7-year-old children and adults. Using a PHANToM~(TM)hapticinterface, participants performed a virtual throwing task in which they tried to propel a ball from atable to hit a target on the ground. In Experiments 1 and 2, the virtual scene was presented on a com-puter monitor, and, in Experiment 3, it was projected by using a video projector so that the vertical andhorizontal dimensions and the spatial location of the VE corresponded to the real-world dimensions.Results indicate that action knowledge is accessible even in a nonimmersive VE, but also suggestthat the need to recalibrate perceptual-motor mappings constrains the accessibility of this kind ofintuitive knowledge.