Figure 4.

Schematic overview of the spatial and nonspatial relational (black background) and non-relational memory (white background) tasks. (a) Example of an original picture from the study phase of the spatial and nonspatial relational task which serves also as an old picture in the test of spatial and nonspatial relational memory. (b) Example of a new picture in the test of spatial relational memory. (c) Example of a new picture in the test of nonspatial relational memory. (d) Example of an original picture from the study phase of the non-relational memory task which serves also as an old picture in the test of non-relational memory. (e) Example of a new picture in the test of non-relational memory.