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. Author manuscript; available in PMC: 2020 Jan 1.
Published in final edited form as: Addict Biol. 2017 Sep 6;24(1):3–16. doi: 10.1111/adb.12546

Figure 1.

Figure 1

Intermittent access induces pharmacologically-relevant drinking of 20% ethanol in Long-Evans rats over 9 weeks (Experiment 1). A Average weekly drinking in the overall group (N = 23) was stable by week 4 but was already significantly higher by week 2 in rats with high (n = 8) compared to low vertical time (n = 8) in a novel activity chamber. B Rats with high compared to low vertical time in the novel activity chamber showed fairly distinct clustering in their level of ethanol drinking, while rats with middle vertical time failed to form a clear group. C Blood ethanol concentrations (BEC) in the overall group (N = 23) were significantly predicted by the 30-minute intake prior to blood collection. Data are mean ± S.E.M.; *p < 0.05, #p = 0.05 vs. low vertical time group.