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. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: Psychopharmacology (Berl). 2011 Aug 24;219(4):1089–1097. doi: 10.1007/s00213-011-2438-6

Figure 3.

Figure 3

Acquisition of cocaine self-administration in the entire group of rats tested at each dose and according to LCR/HCR classification. Session-responses for the percentages of rats acquiring cocaine self-administration in the 0.1875 (N=25), 0.375 (N = 27), 0.5 (N = 18), 1 (N = 22) and 1.5 (N = 27) mg/kg groups on each on the 14 daily acquisition sessions for each dose group (A) and for the rats classified as LCRs (B) and HCRs (C) in each dose group. N values for LCRs/HCRs in the different dose groups are given in Table 1.