Open Field Testing
The open field apparatus was an opaque gray Plexiglas square (89 × 89 cm) with 46 cm
walls. A clear Plexiglas floor was divided into 5 × 5 squares; each square was 17.78 × 17.78
cm. Locomotor activity was measured as the number of times the animal crossed into
another square with all 4 feet during a 10 min test.