Figure 1.

Schematic diagram of the attentional set shifting test arena (dimensions: 40 x 71 x 20 cm, l x w x h). A fixed Plexiglas panel divides the distal third of the arena into two sections, and a digging pot is placed in each section. A removable divider separates the proximal third of the arena from the rest, forming a start box. To begin a trial, a rat is placed in the start box, and the divider lifted. Reprinted, with permission from Elsevier, from (33).