Fig. 10.

The preference for the quadrants with and without the platform tested after the first (A) and second (B) session in the repeated acquisition task. Each bar indicates the time spent in the quadrant with the most recent platform location (mean ± SEM). The time spent in the quadrant with a previous platform location is indicated as a marker (mean).Thick lines indicate a range of preferences for two other nonplatform quadrants. The previous correct quadrant for session 1 was a quadrant with a platform location used in the place discrimination task. See Figure 1 for treatments for the OVX₁ and OVX₂ groups. Significant between-groups differences in the preference for the correct quadrant were revealed only in the first session, in which a change in the platform location coincided with partial changes in spatial cues.Asterisks indicate a significant difference from Sham rats as a result of a post hoc test applied to a significant effect of group (p < 0.05).