Figure 3
From: Prolonged secretion of cortisol as a possible mechanism underlying stress and depressive behaviour

Interrelationships among life events, cortisol and depressive behaviours.
(A) The x-axis represents the mean frequencies of stressful events that monkeys experienced per hour (f/h). The y-axis represents the logarithm of the mean huddling time that the monkeys displayed per hour (s/h). (B) The x-axis represents the logarithm of the mean frequencies of non-stressful events that the monkeys experienced per hour (f/h). The y-axis represents the logarithm of mean huddling time that monkeys displayed per hour (s/h). (C) The x-axis represents mean hair cortisol levels (μg/dl). The y-axis represents the logarithm of the mean huddling time that the monkeys displayed per hour (s/h). (D) The x-axis represents the mean frequencies of stressful events that the monkeys experienced per hour (f/h). The y-axis represents the mean hair cortisol levels (μg/dl).