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. Author manuscript; available in PMC: 2008 Mar 10.
Published in final edited form as: Behav Pharmacol. 2006 May;17(3):213–222. doi: 10.1097/00008877-200605000-00002

Table 3.

Baseline Responding: Experiment 1 (Mean ± SEM per 10 min interval)*

Experimental Condition
Nal-Naive Unpaired Paired-No CS Paired-CS

Pre-CS Interval: 902 ± 83.5 932 ± 54.4 899 ± 46.1 881 ± 48.7
CS Interval:
 CS 1–10 860 ± 74.7 944 ± 56.5 803 ± 38.8 872 ± 39.6
 CS 11–20 647 ± 36.3 628 ± 37.0 556 ± 38.2 620 ± 52.4
*

Baseline responding reflected an average of the last 3 days prior to the first Conditioning Session