Figure 2. Mean occupancy in different sections of the 7.2 cm×7.2 cm square arena.

A. The 7.2 cm square arena was divided into 16 equal 3.24 sectors. These sectors were characterized to three different zones: corner (4 sectors), wall (8 sectors), and center (4 sectors). B. The mean occupancies of the flies, both from simulations and experiments, in each zone are shown. The times spent in these zones by Drosophila were statistically similar to that from the two-component model.