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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: J Exp Anal Behav. 2018 Jul 25;110(2):267–274. doi: 10.1002/jeab.464

Figure 2.

Figure 2.

Free-choice preference data for individual subjects in each of the three conditions of the experiment during the last two sessions of the experiment. For Condition 1 (rat in tube vs. empty goal box) this measure is of choices of restrained rat divided by all choices. For Condition 2 (rat in tube vs. rat outside of tube) this measure is of choices of restrained rat divided by all choices. For Condition 3 (rat outside of tube vs. empty goal box) this measure is of choices of the released rat divided by all choices. S5 did not respond within the 3-min criterion during one trial in Condition 1. Therefore, his data are based on 11, not 12 trials.