Screen shots from the Virtual Silcton desktop virtual environment (A), and an overhead map (B), which depicts the main routes (highlighted in red) and connecting routes (highlighted in blue), which participants learned. Buildings are shown in the screen shots, along with signs and blue gems, which were used to indicate the presence of a building nearby. Buildings are shown in the map as schematic depictions. White circles represent the front door of each building. The overhead map was never shown to participants.