Figure 2: Effects of drug administration on spatial reference memory in a Morris water maze. Performance during acquisition was expressed as the mean latency to find a submerged platform from control, Aβ and Aβ+IBU-GSH conjugate during five consecutive days of training (four trials per day). Control: untreated sample. SE are less than 5% of mean values. a: p < 0.01: - day 2 Aβ vs control; - day 3 Aβ vs control. b: p < 0.05: day 4 Aβ vs control. c: p < 0.05: - day 2 Aβ+IBU-GSH vs control;- day 3 Aβ+IBU-GSH vs control Aβ