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. Author manuscript; available in PMC: 2010 Aug 1.
Published in final edited form as: Behav Neurosci. 2009 Aug;123(4):926–935. doi: 10.1037/a0016002

Figure 5.

Figure 5

Upper panel - mean (+S.E.M.) ethanol consumption following naltrexone (0.0 – 0.4 mg/kg) administration in runway – exposed and yoked – control animals during 30 min limited – access self – administration sessions. Naltrexone dose – dependently attenuated ethanol consumption (* = p < 0.05, ** = p < 0.01 and *** = p < 0.001 compared to vehicle dose; § = p < 0.05 compared to yoked – control vehicle dose). Lower panel - mean (+S.E.M.) water consumption following naltrexone (0.0 – 0.4 mg/kg) administration in runway – exposed and yoked – control animals (* = p < 0.05 compared to vehicle dose).