The environment we created is a relatively complex one: a two floors building with a cross shaped plant.

The environment is empty and therefore no furnishing can be used as landmark.

many different path can be followed during the building exploration

There are 4 stairs connecting the 2 floors of the building, one for each side of the cross plant. The sides of each floor are connected by a central room. Each side of the building can be reached by different ways. This allows participants to use shortcuts of previous learned ways.