Figure 3.

Rats trained at PN17, but not at PN24, show rapid decay in nOL memory retention. (A,B) Percent exploration time of the moved object for PN17 (white bar) and PN24 (black bar) rats at: (A) training and (B) 2 h after training (2 h Test). (C,D) Total exploration time (in seconds, sec) of PN17 (white bar) and PN24 (black bar) rats for both familiar and moved object at: (C) training and (D) 2 h test. Data are expressed as means ± SEM (n = 8–9 per group). (*) P < 0.05 significance for unpaired two-tailed Student's t-test comparing PN17 versus PN24. (###) P < 0.001 significance for one sample t-tests comparing each group to chance performance (50%).