Article Figures & Data
Figures
- Figure 1.
Schematic representation of the neuropsychological test battery. Left, DR; red dot signifies food reward; middle, DNMS; and right, two-choice OD. +, Baited; –, unbaited.
- Figure 2.
Mean serum estradiol (E2) levels in aged OVX monkeys 1 d before, and 9 hr, 2 d, and 3 d after vehicle or hormone injection. The results include data from every monkey, but not all time points were evaluated in each subject.
- Figure 3.
Neuropsychological performance in aged OVX-veh and OVX-E monkeys. Top, Mean number of trials required to reach the acquisition criterion on the DR task at 0 and 1 sec delays (left), and mean percent correct across delays of 5–60 sec (right). Middle, Mean trials required to learn the DNMS procedure with a 10 sec delay (left), and mean percent correct across retention intervals of 15–600 sec (right). Bottom, Mean percent correct across 10-trial blocks of object discrimination learning (days 1 and 2), and retention after 48 hr (day 3). With the exception of one case in which an OVX-E animal completed only three problems, scores for individual animals were averaged across four discriminations. Error bars indicate SEM.
- Figure 4.
Neuropsychological performance in aged OVX-veh and OVX-E monkeys relative to young intact subjects. Top, Delay component of DR; middle, DNMS; bottom, OD, organized as in Figure 3. Error bars indicate SEM.
