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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Neuropsychopharmacology. 2010 Jan;35(2):357–367. doi: 10.1038/npp.2009.139

Figure 4.

Figure 4

Effects of DCS (30 mg/kg) and vehicle (Veh) administered immediately after extinction training (Experiment 3) with brief handling (0hr + H) or without brief handling (0hr – H) and 6 hours after extinction training in conjunction with brief handling (6hr + H). Values are the mean ± SEM response rates during cocaine self-administration baseline sessions (top left panel), lever responses during extinction training sessions and latency to reach the extinction criterion (right panels), and the percent of baseline responses during extinction retention sessions (bottom left panel). No statistically significant differences between conditions were found during self-administration baseline, extinction training, or extinction retention sessions (independent samples t-test, p ≥ 0.12–0.85).