Elevated plus maze

The elevated plus maze is another well-characterized behavioral
paradigm. The maze contains two open arms and two closed (wallsheltered)
arms. The test relies upon the animal’s natural tendency to
stay in enclosed spaces and their unconditioned fear for open spaces
and heights – anxious animals will spend more time in the closed
arms than less anxious animals.

A complete solution ideal for automated tracking includes this elevated plus maze and EthoVision XT.