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The effects of acute donepezil on fear conditioning (n=11–12 for each dose group). Doses of donepezil between 0.015 and 0.5 mg/kg had no effect on fear conditioning. The highest dose of donepezil tested (1.5 mg/kg) increased baseline, immediate, context, and pre-CS freezing. *Significantly different from Saline. Error bars represent ±SEM.
