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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: Pharmacol Biochem Behav. 2015 Dec 15;142:1–7. doi: 10.1016/j.pbb.2015.12.004

Figure 1. Dextromethorphan dose effect function (N=15, mean±sem).

Figure 1

A) Locomotor activity: The dextromethorphan effect was significant (p<0.0005) with the 30 mg/kg dose significantly (p<0.005) decreasing activity relative to control.

B) Food motivated responding: The dextromethorphan effect was significant.

C) Nicotine self-administration: The dextromethorphan effect was significant.