Figure 1.

The photo of experimental apparatus and the different experimental condition with the different angle degree where to reproduce the path: EC (A) egocentric frame of reference with the same reference system both for learning and retrieval; AC (B) allocentric frames of reference with the same reference system both for learning and retrieval; EAC (C) different reference system condition, that is to acquire spatial information using an egocentric frame of reference and to retrieve it using allocentric coordinates; AEC (D) different reference system condition, that is to acquire spatial information using an allocentric frame of reference and to retrieve it using egocentric coordinates.