Figure 2

Formalin test A, Licking duration (sec), B, Flexing duration (sec) and C, Flinching frequency (num) were scored for a 1-hr period after formalin injection (50 μl, 10%) in Intact (INT) and Ovariectomized (OVX) female rats. The time after formalin injection (in 5-min periods) is indicated on the abscissa and the time spent licking or flexing or the frequency of flinching is indicated on the ordinate. Indications of significance for single time points were not included in order to maintain the clarity of the graph.