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. Author manuscript; available in PMC: 2009 Feb 1.
Published in final edited form as: Behav Processes. 2007 Dec 3;77(2):199–209. doi: 10.1016/j.beproc.2007.11.009

Table 1.

Width, height, and area (in pixels) of the four shapes used in Experiment 1

Arch Barrel Brick Wedge
Height 88 74 86 67
Width 78 69 65 75
Area 4950 4432 4443 4162