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. Author manuscript; available in PMC: 2009 Aug 1.
Published in final edited form as: Cognition. 2008 May 2;108(2):466–476. doi: 10.1016/j.cognition.2008.03.008

Figure 1.

Figure 1

Sample stimuli sets from Experiment 1: (a) two identical dogs, (b) two similar dogs, (c) four identical dogs, and (d) four similar dogs. In the placement of objects during the experiment, the position of the target was counter-balanced.