Figure 3. Effect of electric shocks alone and electric shocks plus FG-7142 injection on freezing behavior.

Values are means and S.E.M. of freezing duration (sec) during 10-sec test periods. The significance of each treatment compared to the control at each time point is indicated by an asterisk for P<0.05 inside the corresponding bar. The significance between two treatments is indicated by the actual P value above the corresponding bars.