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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Neurobiol Learn Mem. 2008 Oct 21;92(3):267–282. doi: 10.1016/j.nlm.2008.08.008

Figure 5.

Figure 5

Propranolol administered 5, 60 or 120 minutes following training significantly disrupts learning of CR’s. The X-axis shows training sessions over time, with session 1 being Day 1 AM, 2 Day 1 PM, 3 Day 2 AM, 4 Day 2 PM, 5 Day 3 AM, and 6 Day 3 PM. Learning was attenuated (shown as % CR) when propanolol was administered 5 (N= 6), 60 (N=6), or 120 (N=6) minutes post training, compared to aCSF (N=14) on sessions 3, 4, 5 and 6 (indicated by *). Pseudoconditioning did not differ over sessions or as a result of drug administration (N= 6 psuedocondition control, 6 pseudocondtion propranolol at 5 mintues post training). These data show robust learning in aCSF treated rats and partial learning in propranolol treated rats when administered 5, 60 or 120 minutes post training.