Performance of the rats in the Morris water maze.

<p>(A) latency, (B) distance and (C) swimming speed in the place learning test; (D) the percentage of time spent in the target quadrant in the probe trial. <i>^#P</i><0.05 when compared with the model group. (note: the 0.522 µg/µl special peptide equimolar to Aβ_1-42).