Sex Differences and the Impact of Chronic Stress and Recovery on Instrumental Learning

Figure 2

It shows appetitive shaping data for the fixed ratio-1 task (a) and the fixed ratio-4 task (b) for control (gray), stressed (black), and recovered (checkered) animals. There was significant sex by condition interaction on the FR-1 task with females and recovered animals taking longer to meet the criterions. There was a main effect of sex on the FR-4 task with females taking longer to meet the appetitive shaping criterion.

(a)

(b)