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. Author manuscript; available in PMC: 2020 Jun 1.
Published in final edited form as: Behav Pharmacol. 2019 Jun;30(4):335–342. doi: 10.1097/FBP.0000000000000436

Figure 3.

Figure 3.

Mean (±1 SEM) relative choice for each alternative (upper) and the number of trials completed (lower) during saline (triangles), histamine (circles), and spiradoline (squares) tests in Experiment 2. Black outlined symbols represent 8 rats that were tested with histamine prior to spiradoline. Gray outlined symbols represent 8 rats that were tested with spiradoline prior to histamine. Filled symbols denote a significant (p<0.05) effect compared with saline. Each data point represents 8 rats, except where noted by numbers in parentheses. Horizontal axes: unit dose in mg/kg/infusion.