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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Behav Brain Res. 2011 Mar 1;217(2):399–407. doi: 10.1016/j.bbr.2010.11.018

Figure 1. Extinction of EtOH-CPP was determined by trial duration.

Figure 1

All groups showed significant preference for the EtOH-paired floor following acquisition (Test 1). Following extinction, however, the group that received a 30-min (but not 15- or 5-min) extinction trial duration showed complete extinction of EtOH-CPP (Test 2). Error bars indicate standard error of the mean. A total of 23 subjects (24%) were removed because of failure to express >50% preference on Test 1. An additional two subjects were removed because of procedural errors.

* denotes a significant decrease in preference on Test 2 compared to Test 1 (p < .05).