Fig. 1. Procedure for a redundant place/cued version of the water maze task. The platform is visible on days 1, 2, 5, 6, 9, and 10 and hidden on days 3, 4, 7, 8, 11, and 12 (A). On the competition test (day 13), swim paths from a representative mouse that swam directly to the visible platform in its new location (left, i.e., cued responder) and a representative mouse that crossed the annulus where the escape platform had been during the previous 12 d of training (right, i.e., place responder) (B).