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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: Learn Behav. 2016 Mar;44(1):85–96. doi: 10.3758/s13420-015-0193-y

Figure 3.

Figure 3

Acquisition and extinction of responding in Experiment 2. a.) Procurement and consumption response rate elevation scores. b.) Average response rate on each manipulandum in pre-procurement, procurement, and consumption SD periods (pre-SP, SP, and SC, respectively) collapsed over group. L and R refer to the different chains with left and right lever consumption manipulanda, respectively, “+” and “−” refer to response rates in reinforced and non-reinforced trials, respectively. c.) Accuracy on probe trials during acquisition. d.) Elevation scores of each consumption response in 4-trial blocks across sessions of extinction. “L” and “R” refer to consumption responses that were preceded by left- and right-lever procurement responses in acquisition, respectively. Error bars are the standard error of the mean, and only appropriate for between-group visual comparisons.