Strain comparison of the mean latency (A), and the number of trials to criterion (B) for each of the stage during the training. (C) Analysis of the subtypes of errors made by three rats during the whole task. Values are expressed as mean ± SEM accuracy measured in spontaneous hypertensive rat (SHR), Wistar-Kyoto (WKY) and Sprague-Dawley (SD) strains. *p < 0.05,**p < 0.01 when compared with SHR rats. #p < 0.01 compared in CD and ID, ID and ED.