Figure 6.

Mean (SEM) CPP results for nicotine treated rats following reexposure to the chamber.

Notes: Data were normalized to preconditioning preference and are represented as mean (±SEM) percentage change in preference for the drug paired side. The horizontal line indicates the initial preference for the drug paired compartment. PostCnd = preference for drug paired compartment on day 6 following 5 days of nicotine conditioning. ReExp = preference for drug paired compartment on day 12 following 5 days of rest. PostCnd group: n = 5; ReExp group: n = 5; *P < 0.01.