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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Psychopharmacology (Berl). 2011 Feb 12;218(1):89–99. doi: 10.1007/s00213-011-2178-7

Figure 2. Exp. 2: food: Effect of prazosin or guanfacine on food-reinforced responding.

Figure 2

Data are mean±SEM. Rats were injected with prazosin, guanfacine or their vehicle 60 min before the test sessions. The drugs had no significant effect on number of pellet earned, number of timeout lever presses, and magazine entries. Rats lever pressed for the food pellet under an FR-1 20 sec timeout reinforcement schedule (n=6 per dose, within-subjects design).