Fig. 4.

Mean levels of plasma cortisol measured during daytime hours (1000–1800) both in the early follicular phase of a control, nonstressed menstrual cycle (open bars) and in the same phase of a cycle with (gray bars) and without (black bars) antalarmin pretreatment prior to exposure to mild combined stress (move + diet) in HSR, MSR, and SS monkeys (A) and in HSR vs. animals that became anovulatory in response to MSR + SS (B). Control and stress cycle data reprinted from Fig. 5, A and B, of the companion article to this study (28a).