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Mean durations ± SEM (in seconds) of behavioral components in unlesioned groups (saline, nicotine 0.1, 0.5, and 1 mg/kg). # = significant (p < 0.05) ANOVA result; * = significant (p < 0.05) difference in comparison with saline (Newman-Keuls post hoc test for multiple comparisons). Panel (A) = behavioral components with durations ± SEM in one or more groups > 5 s; panel (B) = behavioral components with durations ± SEM in one or more groups < 5 s. See Figure 2 for abbreviations.
