The ameliorative effect of medicarpin (MC) was investigated by animal behavioral experiments such as Morris water maze (MWM), Y-maze, and passive avoidance test (PAT), using scopolamine-induced cognitively impaired mice. scopolamine (5 mg/kg), donepezil MC 15 mg/kg) were administered intraperitoneal injection at a volume 0.3 mL. In the MWM, escape latency times MC-treated groups significantly d...