Vidal, M Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Vidal, M. (2005). Navigating in a virtual 3D maze: body and gravity, two possible reference frames for perceiving and memorizing. Spatial Cognition and Computation, 5(2-3), 139-161. doi:10.1207/s15427633scc0523_3.