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. Author manuscript; available in PMC: 2011 Mar 5.
Published in final edited form as: Vision Res. 2010 Jan 8;50(5):497–508. doi: 10.1016/j.visres.2009.12.016

Figure 2.

Figure 2

Mean percentage of correct responses on figure and background trials during the testing phase (left panel) and the maintenance phase (right panel) in Experiment 1. Note that during the testing phase, the figures with small large areas were presented on a small proportion of nondifferentially reinforced trials, whereas during the maintenance phase each type of display was presented on one third of the differentially reinforced trials. Error bars indicate the standard error of the means.