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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: Drug Alcohol Depend. 2013 May 31;131(3):204–213. doi: 10.1016/j.drugalcdep.2013.05.005

Figure 1.

Figure 1

Effects of continuous 14-day treatment with saline on choice between cocaine and food in rhesus monkeys (n=3). The top panels show saline treatment effects on cocaine dose-effect curves. Top and middle abscissae: unit dose of cocaine in milligrams per kilogram per injection (log scale). Top ordinates: percent cocaine choice. Middle ordinates: the number of choices completed per component. The bottom panels show summary data for total choices, food choices and cocaine choices summed across all cocaine doses. Bottom abscissae: experimental endpoint. Bottom ordinates: number of choices per session. All points and bars represent mean data ± SEM obtained during days 5-7 and 12-14 of each 14-day treatment period from three monkeys. Baseline points and bars represent mean data ± SEM obtained during the 3 days preceding each treatment period while saline was infused through the “treatment” lumen of the double lumen catheter.