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. Author manuscript; available in PMC: 2016 Jan 31.
Published in final edited form as: Behav Processes. 2014 Nov 25;111:42–50. doi: 10.1016/j.beproc.2014.11.015

Figure 1.

Figure 1

Schematic representation of the virtual pool, denoting four quadrants (light gray lines: NW, NE, SW, SE). The large gray circle represents the target region, which is 25% of the pool diameter centered on the platform (white square), located in the NE quadrant.